1 00:00:40,250 --> 00:00:43,700 for more than 20 centuries the moon has 2 00:00:43,700 --> 00:00:43,710 for more than 20 centuries the moon has 3 00:00:43,710 --> 00:00:45,770 for more than 20 centuries the moon has been studied and investigated by skilled 4 00:00:45,770 --> 00:00:45,780 been studied and investigated by skilled 5 00:00:45,780 --> 00:00:48,410 been studied and investigated by skilled and ingenious men they have come to 6 00:00:48,410 --> 00:00:48,420 and ingenious men they have come to 7 00:00:48,420 --> 00:00:50,240 and ingenious men they have come to realize that in comparing the moon with 8 00:00:50,240 --> 00:00:50,250 realize that in comparing the moon with 9 00:00:50,250 --> 00:00:52,670 realize that in comparing the moon with you we can learn more about the history 10 00:00:52,670 --> 00:00:52,680 you we can learn more about the history 11 00:00:52,680 --> 00:00:55,700 you we can learn more about the history of both and ultimately more about the 12 00:00:55,700 --> 00:00:55,710 of both and ultimately more about the 13 00:00:55,710 --> 00:00:57,400 of both and ultimately more about the history of the solar system as a whole 14 00:00:57,400 --> 00:00:57,410 history of the solar system as a whole 15 00:00:57,410 --> 00:01:00,319 history of the solar system as a whole in the process we would gain a new 16 00:01:00,319 --> 00:01:00,329 in the process we would gain a new 17 00:01:00,329 --> 00:01:02,420 in the process we would gain a new perspective about our own place and role 18 00:01:02,420 --> 00:01:02,430 perspective about our own place and role 19 00:01:02,430 --> 00:01:12,440 perspective about our own place and role on our small blue planet before a manned 20 00:01:12,440 --> 00:01:12,450 on our small blue planet before a manned 21 00:01:12,450 --> 00:01:14,660 on our small blue planet before a manned Apollo flights to the moon we could only 22 00:01:14,660 --> 00:01:14,670 Apollo flights to the moon we could only 23 00:01:14,670 --> 00:01:17,539 Apollo flights to the moon we could only study it remotely primarily by way of 24 00:01:17,539 --> 00:01:17,549 study it remotely primarily by way of 25 00:01:17,549 --> 00:01:22,030 study it remotely primarily by way of instruments such as the telescope and 26 00:01:22,030 --> 00:01:22,040 instruments such as the telescope and 27 00:01:22,040 --> 00:01:25,219 instruments such as the telescope and recently in history by way of automated 28 00:01:25,219 --> 00:01:25,229 recently in history by way of automated 29 00:01:25,229 --> 00:01:32,140 recently in history by way of automated spacecraft 30 00:01:32,140 --> 00:01:32,150 31 00:01:32,150 --> 00:01:35,480 early in the 17th century galileo 32 00:01:35,480 --> 00:01:35,490 early in the 17th century galileo 33 00:01:35,490 --> 00:01:37,430 early in the 17th century galileo galilei became the first of the great 34 00:01:37,430 --> 00:01:37,440 galilei became the first of the great 35 00:01:37,440 --> 00:01:40,070 galilei became the first of the great scientists to use the telescope a quite 36 00:01:40,070 --> 00:01:40,080 scientists to use the telescope a quite 37 00:01:40,080 --> 00:01:42,440 scientists to use the telescope a quite novel instrument at the time to study 38 00:01:42,440 --> 00:01:42,450 novel instrument at the time to study 39 00:01:42,450 --> 00:01:47,660 novel instrument at the time to study the moon I feel sure that the surface of 40 00:01:47,660 --> 00:01:47,670 the moon I feel sure that the surface of 41 00:01:47,670 --> 00:01:50,270 the moon I feel sure that the surface of the Moon is not perfectly smooth free 42 00:01:50,270 --> 00:01:50,280 the Moon is not perfectly smooth free 43 00:01:50,280 --> 00:01:52,700 the Moon is not perfectly smooth free from inequalities and exactly spherical 44 00:01:52,700 --> 00:01:52,710 from inequalities and exactly spherical 45 00:01:52,710 --> 00:01:54,980 from inequalities and exactly spherical as a large school of philosophers 46 00:01:54,980 --> 00:01:54,990 as a large school of philosophers 47 00:01:54,990 --> 00:01:59,210 as a large school of philosophers considers on the contrary it is full of 48 00:01:59,210 --> 00:01:59,220 considers on the contrary it is full of 49 00:01:59,220 --> 00:02:02,510 considers on the contrary it is full of inequalities uneven full of hollows and 50 00:02:02,510 --> 00:02:02,520 inequalities uneven full of hollows and 51 00:02:02,520 --> 00:02:05,300 inequalities uneven full of hollows and protuberances just like the surface of 52 00:02:05,300 --> 00:02:05,310 protuberances just like the surface of 53 00:02:05,310 --> 00:02:08,719 protuberances just like the surface of the earth itself his discoveries helped 54 00:02:08,719 --> 00:02:08,729 the earth itself his discoveries helped 55 00:02:08,729 --> 00:02:10,850 the earth itself his discoveries helped overturn erroneous beliefs popularly 56 00:02:10,850 --> 00:02:10,860 overturn erroneous beliefs popularly 57 00:02:10,860 --> 00:02:13,910 overturn erroneous beliefs popularly held and taught for 14 centuries and lay 58 00:02:13,910 --> 00:02:13,920 held and taught for 14 centuries and lay 59 00:02:13,920 --> 00:02:18,310 held and taught for 14 centuries and lay the foundation for modern lunar science 60 00:02:18,310 --> 00:02:18,320 61 00:02:18,320 --> 00:02:20,990 Galileo would be followed by a scream of 62 00:02:20,990 --> 00:02:21,000 Galileo would be followed by a scream of 63 00:02:21,000 --> 00:02:22,970 Galileo would be followed by a scream of other scientists and a mass of new 64 00:02:22,970 --> 00:02:22,980 other scientists and a mass of new 65 00:02:22,980 --> 00:02:25,640 other scientists and a mass of new information and knowledge the centuries 66 00:02:25,640 --> 00:02:25,650 information and knowledge the centuries 67 00:02:25,650 --> 00:02:27,590 information and knowledge the centuries of investigations produced a great deal 68 00:02:27,590 --> 00:02:27,600 of investigations produced a great deal 69 00:02:27,600 --> 00:02:33,110 of investigations produced a great deal of information about the moon for 70 00:02:33,110 --> 00:02:33,120 of information about the moon for 71 00:02:33,120 --> 00:02:35,780 of information about the moon for instance the moon orbiting once about 72 00:02:35,780 --> 00:02:35,790 instance the moon orbiting once about 73 00:02:35,790 --> 00:02:38,449 instance the moon orbiting once about every four weeks always keeping the same 74 00:02:38,449 --> 00:02:38,459 every four weeks always keeping the same 75 00:02:38,459 --> 00:02:41,210 every four weeks always keeping the same face toward Earth is far larger and more 76 00:02:41,210 --> 00:02:41,220 face toward Earth is far larger and more 77 00:02:41,220 --> 00:02:43,250 face toward Earth is far larger and more distant compared with its planet then 78 00:02:43,250 --> 00:02:43,260 distant compared with its planet then 79 00:02:43,260 --> 00:02:44,810 distant compared with its planet then are any of the other moons of our solar 80 00:02:44,810 --> 00:02:44,820 are any of the other moons of our solar 81 00:02:44,820 --> 00:02:46,580 are any of the other moons of our solar system compared with their planets in 82 00:02:46,580 --> 00:02:46,590 system compared with their planets in 83 00:02:46,590 --> 00:02:49,280 system compared with their planets in fact the moon is often considered a 84 00:02:49,280 --> 00:02:49,290 fact the moon is often considered a 85 00:02:49,290 --> 00:02:51,310 fact the moon is often considered a planet in its own right 86 00:02:51,310 --> 00:02:51,320 planet in its own right 87 00:02:51,320 --> 00:02:54,290 planet in its own right further some scientists believe that the 88 00:02:54,290 --> 00:02:54,300 further some scientists believe that the 89 00:02:54,300 --> 00:02:56,060 further some scientists believe that the moon is gradually pulling away from the 90 00:02:56,060 --> 00:02:56,070 moon is gradually pulling away from the 91 00:02:56,070 --> 00:02:58,610 moon is gradually pulling away from the earth which in turn is gradually 92 00:02:58,610 --> 00:02:58,620 earth which in turn is gradually 93 00:02:58,620 --> 00:03:01,449 earth which in turn is gradually revolving slower and slower on its axis 94 00:03:01,449 --> 00:03:01,459 revolving slower and slower on its axis 95 00:03:01,459 --> 00:03:03,949 revolving slower and slower on its axis there is at least some evidence that the 96 00:03:03,949 --> 00:03:03,959 there is at least some evidence that the 97 00:03:03,959 --> 00:03:05,840 there is at least some evidence that the moon was much nearer Earth in the past 98 00:03:05,840 --> 00:03:05,850 moon was much nearer Earth in the past 99 00:03:05,850 --> 00:03:08,390 moon was much nearer Earth in the past although no one knows just how near it 100 00:03:08,390 --> 00:03:08,400 although no one knows just how near it 101 00:03:08,400 --> 00:03:13,520 although no one knows just how near it might have been 102 00:03:13,520 --> 00:03:13,530 103 00:03:13,530 --> 00:03:16,380 the surface of the Moon has aptly been 104 00:03:16,380 --> 00:03:16,390 the surface of the Moon has aptly been 105 00:03:16,390 --> 00:03:18,600 the surface of the Moon has aptly been described as a cosmic battlefield a 106 00:03:18,600 --> 00:03:18,610 described as a cosmic battlefield a 107 00:03:18,610 --> 00:03:21,270 described as a cosmic battlefield a place terribly hostile to life 108 00:03:21,270 --> 00:03:21,280 place terribly hostile to life 109 00:03:21,280 --> 00:03:24,300 place terribly hostile to life it is alternately baked and frozen in 110 00:03:24,300 --> 00:03:24,310 it is alternately baked and frozen in 111 00:03:24,310 --> 00:03:26,850 it is alternately baked and frozen in temperatures ranging from some 250 112 00:03:26,850 --> 00:03:26,860 temperatures ranging from some 250 113 00:03:26,860 --> 00:03:29,160 temperatures ranging from some 250 degrees Fahrenheit above zero to some 114 00:03:29,160 --> 00:03:29,170 degrees Fahrenheit above zero to some 115 00:03:29,170 --> 00:03:32,339 degrees Fahrenheit above zero to some 250 degrees below zero and it is seared 116 00:03:32,339 --> 00:03:32,349 250 degrees below zero and it is seared 117 00:03:32,349 --> 00:03:37,860 250 degrees below zero and it is seared by radiation from the Sun as a whole the 118 00:03:37,860 --> 00:03:37,870 by radiation from the Sun as a whole the 119 00:03:37,870 --> 00:03:39,660 by radiation from the Sun as a whole the surface of the Moon may be divided into 120 00:03:39,660 --> 00:03:39,670 surface of the Moon may be divided into 121 00:03:39,670 --> 00:03:41,940 surface of the Moon may be divided into the heavily cratered Highlands which 122 00:03:41,940 --> 00:03:41,950 the heavily cratered Highlands which 123 00:03:41,950 --> 00:03:43,860 the heavily cratered Highlands which Galileo called the brighter parts and 124 00:03:43,860 --> 00:03:43,870 Galileo called the brighter parts and 125 00:03:43,870 --> 00:03:46,650 Galileo called the brighter parts and the Maurya which Galileo called the 126 00:03:46,650 --> 00:03:46,660 the Maurya which Galileo called the 127 00:03:46,660 --> 00:03:51,660 the Maurya which Galileo called the darker parts the highlands are far more 128 00:03:51,660 --> 00:03:51,670 darker parts the highlands are far more 129 00:03:51,670 --> 00:03:54,449 darker parts the highlands are far more rugged having 20 to 30 times more 130 00:03:54,449 --> 00:03:54,459 rugged having 20 to 30 times more 131 00:03:54,459 --> 00:03:59,339 rugged having 20 to 30 times more craters than the Maurya this means that 132 00:03:59,339 --> 00:03:59,349 craters than the Maurya this means that 133 00:03:59,349 --> 00:04:01,229 craters than the Maurya this means that the formation of craters had slowed 134 00:04:01,229 --> 00:04:01,239 the formation of craters had slowed 135 00:04:01,239 --> 00:04:03,030 the formation of craters had slowed drastically by the time the Maurya 136 00:04:03,030 --> 00:04:03,040 drastically by the time the Maurya 137 00:04:03,040 --> 00:04:10,440 drastically by the time the Maurya basins were filled in essence the 138 00:04:10,440 --> 00:04:10,450 basins were filled in essence the 139 00:04:10,450 --> 00:04:12,119 basins were filled in essence the Highlands were formed when the moon was 140 00:04:12,119 --> 00:04:12,129 Highlands were formed when the moon was 141 00:04:12,129 --> 00:04:15,599 Highlands were formed when the moon was a growing dynamic body the Maurya when 142 00:04:15,599 --> 00:04:15,609 a growing dynamic body the Maurya when 143 00:04:15,609 --> 00:04:21,569 a growing dynamic body the Maurya when the moon was far less active in contrast 144 00:04:21,569 --> 00:04:21,579 the moon was far less active in contrast 145 00:04:21,579 --> 00:04:24,029 the moon was far less active in contrast with the moon's face the far side is 146 00:04:24,029 --> 00:04:24,039 with the moon's face the far side is 147 00:04:24,039 --> 00:04:25,800 with the moon's face the far side is almost totally covered with Highlands 148 00:04:25,800 --> 00:04:25,810 almost totally covered with Highlands 149 00:04:25,810 --> 00:04:30,320 almost totally covered with Highlands there simply are none of the great Marya 150 00:04:30,320 --> 00:04:30,330 151 00:04:30,330 --> 00:04:32,760 telescopes and automated satellites 152 00:04:32,760 --> 00:04:32,770 telescopes and automated satellites 153 00:04:32,770 --> 00:04:34,440 telescopes and automated satellites brought us close-up looks at many 154 00:04:34,440 --> 00:04:34,450 brought us close-up looks at many 155 00:04:34,450 --> 00:04:37,800 brought us close-up looks at many individual features for instance in the 156 00:04:37,800 --> 00:04:37,810 individual features for instance in the 157 00:04:37,810 --> 00:04:40,680 individual features for instance in the highlands craters which look much like 158 00:04:40,680 --> 00:04:40,690 highlands craters which look much like 159 00:04:40,690 --> 00:04:46,330 highlands craters which look much like certain volcanoes on earth 160 00:04:46,330 --> 00:04:46,340 161 00:04:46,340 --> 00:04:48,700 other craters which look like impact 162 00:04:48,700 --> 00:04:48,710 other craters which look like impact 163 00:04:48,710 --> 00:04:51,340 other craters which look like impact sites sometimes with streaks of debris 164 00:04:51,340 --> 00:04:51,350 sites sometimes with streaks of debris 165 00:04:51,350 --> 00:04:53,260 sites sometimes with streaks of debris radiating hundreds of miles away from 166 00:04:53,260 --> 00:04:53,270 radiating hundreds of miles away from 167 00:04:53,270 --> 00:04:57,640 radiating hundreds of miles away from their centers mountain ranges which 168 00:04:57,640 --> 00:04:57,650 their centers mountain ranges which 169 00:04:57,650 --> 00:04:59,620 their centers mountain ranges which tower thousands of feet above the 170 00:04:59,620 --> 00:04:59,630 tower thousands of feet above the 171 00:04:59,630 --> 00:05:05,080 tower thousands of feet above the surrounding Plains symmetrical Hills 172 00:05:05,080 --> 00:05:05,090 surrounding Plains symmetrical Hills 173 00:05:05,090 --> 00:05:10,450 surrounding Plains symmetrical Hills known as domes apparent red glows first 174 00:05:10,450 --> 00:05:10,460 known as domes apparent red glows first 175 00:05:10,460 --> 00:05:16,150 known as domes apparent red glows first seen in the 1950s where the Highlands 176 00:05:16,150 --> 00:05:16,160 seen in the 1950s where the Highlands 177 00:05:16,160 --> 00:05:18,310 seen in the 1950s where the Highlands and Mario meet there are features which 178 00:05:18,310 --> 00:05:18,320 and Mario meet there are features which 179 00:05:18,320 --> 00:05:20,500 and Mario meet there are features which look much like ocean waves approaching a 180 00:05:20,500 --> 00:05:20,510 look much like ocean waves approaching a 181 00:05:20,510 --> 00:05:25,660 look much like ocean waves approaching a rugged shoreline the Maurya basins are 182 00:05:25,660 --> 00:05:25,670 rugged shoreline the Maurya basins are 183 00:05:25,670 --> 00:05:28,570 rugged shoreline the Maurya basins are comparatively smooth and flat likened to 184 00:05:28,570 --> 00:05:28,580 comparatively smooth and flat likened to 185 00:05:28,580 --> 00:05:31,090 comparatively smooth and flat likened to a frozen sea by the first meander orbit 186 00:05:31,090 --> 00:05:31,100 a frozen sea by the first meander orbit 187 00:05:31,100 --> 00:05:33,580 a frozen sea by the first meander orbit the moon and they are marked by 188 00:05:33,580 --> 00:05:33,590 the moon and they are marked by 189 00:05:33,590 --> 00:05:36,310 the moon and they are marked by so-called wrinkled ridges which had the 190 00:05:36,310 --> 00:05:36,320 so-called wrinkled ridges which had the 191 00:05:36,320 --> 00:05:42,340 so-called wrinkled ridges which had the appearance of frozen waves phantom 192 00:05:42,340 --> 00:05:42,350 appearance of frozen waves phantom 193 00:05:42,350 --> 00:05:45,190 appearance of frozen waves phantom craters evidently real craters virtually 194 00:05:45,190 --> 00:05:45,200 craters evidently real craters virtually 195 00:05:45,200 --> 00:05:50,440 craters evidently real craters virtually inundated by Mario materials then there 196 00:05:50,440 --> 00:05:50,450 inundated by Mario materials then there 197 00:05:50,450 --> 00:05:52,720 inundated by Mario materials then there are valleys which wander for hundreds of 198 00:05:52,720 --> 00:05:52,730 are valleys which wander for hundreds of 199 00:05:52,730 --> 00:05:58,360 are valleys which wander for hundreds of miles across the surface great fractures 200 00:05:58,360 --> 00:05:58,370 miles across the surface great fractures 201 00:05:58,370 --> 00:06:00,640 miles across the surface great fractures or faults which may slice across the 202 00:06:00,640 --> 00:06:00,650 or faults which may slice across the 203 00:06:00,650 --> 00:06:05,620 or faults which may slice across the moon's face for a hundred miles there 204 00:06:05,620 --> 00:06:05,630 moon's face for a hundred miles there 205 00:06:05,630 --> 00:06:07,050 moon's face for a hundred miles there are the newly discovered mass 206 00:06:07,050 --> 00:06:07,060 are the newly discovered mass 207 00:06:07,060 --> 00:06:10,570 are the newly discovered mass concentrations or mass cones buried 208 00:06:10,570 --> 00:06:10,580 concentrations or mass cones buried 209 00:06:10,580 --> 00:06:13,090 concentrations or mass cones buried beneath the circular Marya and their 210 00:06:13,090 --> 00:06:13,100 beneath the circular Marya and their 211 00:06:13,100 --> 00:06:14,950 beneath the circular Marya and their gravitational attraction actually 212 00:06:14,950 --> 00:06:14,960 gravitational attraction actually 213 00:06:14,960 --> 00:06:16,750 gravitational attraction actually distorts the flight paths of space 214 00:06:16,750 --> 00:06:16,760 distorts the flight paths of space 215 00:06:16,760 --> 00:06:21,210 distorts the flight paths of space vehicles circling the moon 216 00:06:21,210 --> 00:06:21,220 217 00:06:21,220 --> 00:06:24,120 from surveyor spacecraft there was even 218 00:06:24,120 --> 00:06:24,130 from surveyor spacecraft there was even 219 00:06:24,130 --> 00:06:25,980 from surveyor spacecraft there was even some knowledge of the nature of the soil 220 00:06:25,980 --> 00:06:25,990 some knowledge of the nature of the soil 221 00:06:25,990 --> 00:06:34,620 some knowledge of the nature of the soil and a chemistry of materials yet for all 222 00:06:34,620 --> 00:06:34,630 and a chemistry of materials yet for all 223 00:06:34,630 --> 00:06:37,340 and a chemistry of materials yet for all we had learned for all we had discovered 224 00:06:37,340 --> 00:06:37,350 we had learned for all we had discovered 225 00:06:37,350 --> 00:06:40,320 we had learned for all we had discovered even with unmanned space vehicles which 226 00:06:40,320 --> 00:06:40,330 even with unmanned space vehicles which 227 00:06:40,330 --> 00:06:42,690 even with unmanned space vehicles which landed on the surface and manned Apollo 228 00:06:42,690 --> 00:06:42,700 landed on the surface and manned Apollo 229 00:06:42,700 --> 00:06:44,940 landed on the surface and manned Apollo vehicles which orbited above the surface 230 00:06:44,940 --> 00:06:44,950 vehicles which orbited above the surface 231 00:06:44,950 --> 00:06:48,690 vehicles which orbited above the surface the moon still somehow seemed remote and 232 00:06:48,690 --> 00:06:48,700 the moon still somehow seemed remote and 233 00:06:48,700 --> 00:07:00,200 the moon still somehow seemed remote and inaccessible until that day in July 1969 234 00:07:00,200 --> 00:07:00,210 235 00:07:00,210 --> 00:07:05,280 putting feet down to a nap any feet two 236 00:07:05,280 --> 00:07:05,290 putting feet down to a nap any feet two 237 00:07:05,290 --> 00:07:08,640 putting feet down to a nap any feet two and a half down take that out for 238 00:07:08,640 --> 00:07:08,650 and a half down take that out for 239 00:07:08,650 --> 00:07:11,520 and a half down take that out for forward forward drift into the right 240 00:07:11,520 --> 00:07:11,530 forward forward drift into the right 241 00:07:11,530 --> 00:07:16,860 forward forward drift into the right little shiny second or weakest I kept 242 00:07:16,860 --> 00:07:16,870 little shiny second or weakest I kept 243 00:07:16,870 --> 00:07:22,110 little shiny second or weakest I kept them that 244 00:07:22,110 --> 00:07:22,120 245 00:07:22,120 --> 00:07:29,490 at the battle out there contact light 246 00:07:29,490 --> 00:07:29,500 247 00:07:29,500 --> 00:07:34,580 okay engine stop we copy it down eagle 248 00:07:34,580 --> 00:07:34,590 okay engine stop we copy it down eagle 249 00:07:34,590 --> 00:07:39,630 okay engine stop we copy it down eagle and Gordie babe here we go out landed in 250 00:07:39,630 --> 00:07:39,640 and Gordie babe here we go out landed in 251 00:07:39,640 --> 00:07:43,230 and Gordie babe here we go out landed in a sense from this moment on the old moon 252 00:07:43,230 --> 00:07:43,240 a sense from this moment on the old moon 253 00:07:43,240 --> 00:07:44,580 a sense from this moment on the old moon that had once been the stuff of 254 00:07:44,580 --> 00:07:44,590 that had once been the stuff of 255 00:07:44,590 --> 00:07:47,430 that had once been the stuff of impossible dreams completely disappeared 256 00:07:47,430 --> 00:07:47,440 impossible dreams completely disappeared 257 00:07:47,440 --> 00:07:50,700 impossible dreams completely disappeared and a new moon of mountains and valleys 258 00:07:50,700 --> 00:07:50,710 and a new moon of mountains and valleys 259 00:07:50,710 --> 00:07:53,520 and a new moon of mountains and valleys and stone and dirt and possible dreams 260 00:07:53,520 --> 00:07:53,530 and stone and dirt and possible dreams 261 00:07:53,530 --> 00:07:57,600 and stone and dirt and possible dreams took its place I will get to the details 262 00:07:57,600 --> 00:07:57,610 took its place I will get to the details 263 00:07:57,610 --> 00:08:01,050 took its place I will get to the details of what's around here but it looked like 264 00:08:01,050 --> 00:08:01,060 of what's around here but it looked like 265 00:08:01,060 --> 00:08:04,380 of what's around here but it looked like a collection of just about every variety 266 00:08:04,380 --> 00:08:04,390 a collection of just about every variety 267 00:08:04,390 --> 00:08:08,960 a collection of just about every variety of shaped angularity granularity that 268 00:08:08,960 --> 00:08:08,970 of shaped angularity granularity that 269 00:08:08,970 --> 00:08:12,860 of shaped angularity granularity that every variety of rock you could find 270 00:08:12,860 --> 00:08:12,870 every variety of rock you could find 271 00:08:12,870 --> 00:08:16,280 every variety of rock you could find fairly large number of craters of the 272 00:08:16,280 --> 00:08:16,290 fairly large number of craters of the 273 00:08:16,290 --> 00:08:22,340 fairly large number of craters of the five 250-foot variety and some reaches 274 00:08:22,340 --> 00:08:22,350 five 250-foot variety and some reaches 275 00:08:22,350 --> 00:08:27,840 five 250-foot variety and some reaches for 2013 Iowa death and literally 276 00:08:27,840 --> 00:08:27,850 for 2013 Iowa death and literally 277 00:08:27,850 --> 00:08:30,650 for 2013 Iowa death and literally thousands of little one and stupid 278 00:08:30,650 --> 00:08:30,660 thousands of little one and stupid 279 00:08:30,660 --> 00:08:34,500 thousands of little one and stupid craters around the area there is a hill 280 00:08:34,500 --> 00:08:34,510 craters around the area there is a hill 281 00:08:34,510 --> 00:08:39,230 craters around the area there is a hill and you just about on the ground track 282 00:08:39,230 --> 00:08:39,240 and you just about on the ground track 283 00:08:39,240 --> 00:08:42,480 and you just about on the ground track ahead of it difficult to estimate but 284 00:08:42,480 --> 00:08:42,490 ahead of it difficult to estimate but 285 00:08:42,490 --> 00:08:47,010 ahead of it difficult to estimate but might be a half a mile and throughout 286 00:08:47,010 --> 00:08:47,020 might be a half a mile and throughout 287 00:08:47,020 --> 00:08:49,770 might be a half a mile and throughout the world there was renewed belief not 288 00:08:49,770 --> 00:08:49,780 the world there was renewed belief not 289 00:08:49,780 --> 00:08:52,860 the world there was renewed belief not just in American technology but in human 290 00:08:52,860 --> 00:08:52,870 just in American technology but in human 291 00:08:52,870 --> 00:08:57,120 just in American technology but in human abilities thus in the Moon Sea of 292 00:08:57,120 --> 00:08:57,130 abilities thus in the Moon Sea of 293 00:08:57,130 --> 00:08:59,640 abilities thus in the Moon Sea of Tranquility a new chapter in the history 294 00:08:59,640 --> 00:08:59,650 Tranquility a new chapter in the history 295 00:08:59,650 --> 00:09:04,980 Tranquility a new chapter in the history of science was begun simultaneously a 296 00:09:04,980 --> 00:09:04,990 of science was begun simultaneously a 297 00:09:04,990 --> 00:09:07,380 of science was begun simultaneously a carefully developed and planned program 298 00:09:07,380 --> 00:09:07,390 carefully developed and planned program 299 00:09:07,390 --> 00:09:09,720 carefully developed and planned program of scientific investigation was set in 300 00:09:09,720 --> 00:09:09,730 of scientific investigation was set in 301 00:09:09,730 --> 00:09:14,670 of scientific investigation was set in motion there would be new information 302 00:09:14,670 --> 00:09:14,680 motion there would be new information 303 00:09:14,680 --> 00:09:17,579 motion there would be new information about the internal structure of the moon 304 00:09:17,579 --> 00:09:17,589 about the internal structure of the moon 305 00:09:17,589 --> 00:09:20,070 about the internal structure of the moon the chemical composition of the rocks 306 00:09:20,070 --> 00:09:20,080 the chemical composition of the rocks 307 00:09:20,080 --> 00:09:23,610 the chemical composition of the rocks and soil the dynamic processes at work 308 00:09:23,610 --> 00:09:23,620 and soil the dynamic processes at work 309 00:09:23,620 --> 00:09:28,380 and soil the dynamic processes at work and the ages of materials scientists 310 00:09:28,380 --> 00:09:28,390 and the ages of materials scientists 311 00:09:28,390 --> 00:09:31,330 and the ages of materials scientists shared a great sense of excitement 312 00:09:31,330 --> 00:09:31,340 shared a great sense of excitement 313 00:09:31,340 --> 00:09:34,010 shared a great sense of excitement in the highest-priority scientific 314 00:09:34,010 --> 00:09:34,020 in the highest-priority scientific 315 00:09:34,020 --> 00:09:36,380 in the highest-priority scientific undertaking the astronauts collected a 316 00:09:36,380 --> 00:09:36,390 undertaking the astronauts collected a 317 00:09:36,390 --> 00:09:38,090 undertaking the astronauts collected a selection of samples of the lunar 318 00:09:38,090 --> 00:09:38,100 selection of samples of the lunar 319 00:09:38,100 --> 00:09:40,600 selection of samples of the lunar surface the first extraterrestrial 320 00:09:40,600 --> 00:09:40,610 surface the first extraterrestrial 321 00:09:40,610 --> 00:09:43,010 surface the first extraterrestrial materials ever to be brought to earth 322 00:09:43,010 --> 00:09:43,020 materials ever to be brought to earth 323 00:09:43,020 --> 00:09:47,240 materials ever to be brought to earth from a known context in an experience so 324 00:09:47,240 --> 00:09:47,250 from a known context in an experience so 325 00:09:47,250 --> 00:09:49,970 from a known context in an experience so new every fragment of information was of 326 00:09:49,970 --> 00:09:49,980 new every fragment of information was of 327 00:09:49,980 --> 00:10:28,010 new every fragment of information was of intense scientific interest in the 328 00:10:28,010 --> 00:10:28,020 intense scientific interest in the 329 00:10:28,020 --> 00:10:30,500 intense scientific interest in the centres of small craters the astronauts 330 00:10:30,500 --> 00:10:30,510 centres of small craters the astronauts 331 00:10:30,510 --> 00:10:32,900 centres of small craters the astronauts discovered strange features which looked 332 00:10:32,900 --> 00:10:32,910 discovered strange features which looked 333 00:10:32,910 --> 00:10:37,580 discovered strange features which looked much like splattered solder or glass the 334 00:10:37,580 --> 00:10:37,590 much like splattered solder or glass the 335 00:10:37,590 --> 00:10:39,440 much like splattered solder or glass the astronauts discovered rocks which had 336 00:10:39,440 --> 00:10:39,450 astronauts discovered rocks which had 337 00:10:39,450 --> 00:10:41,900 astronauts discovered rocks which had been hurled from neighboring craters yet 338 00:10:41,900 --> 00:10:41,910 been hurled from neighboring craters yet 339 00:10:41,910 --> 00:10:44,180 been hurled from neighboring craters yet they saw no impact scars in the powdery 340 00:10:44,180 --> 00:10:44,190 they saw no impact scars in the powdery 341 00:10:44,190 --> 00:10:46,940 they saw no impact scars in the powdery surface with a rock struck the scars had 342 00:10:46,940 --> 00:10:46,950 surface with a rock struck the scars had 343 00:10:46,950 --> 00:10:48,560 surface with a rock struck the scars had apparently been eroded away by an 344 00:10:48,560 --> 00:10:48,570 apparently been eroded away by an 345 00:10:48,570 --> 00:10:52,130 apparently been eroded away by an unknown process the astronauts set up an 346 00:10:52,130 --> 00:10:52,140 unknown process the astronauts set up an 347 00:10:52,140 --> 00:10:54,260 unknown process the astronauts set up an array of instruments in effect a 348 00:10:54,260 --> 00:10:54,270 array of instruments in effect a 349 00:10:54,270 --> 00:10:56,660 array of instruments in effect a miniature scientific station to return 350 00:10:56,660 --> 00:10:56,670 miniature scientific station to return 351 00:10:56,670 --> 00:10:58,490 miniature scientific station to return data to earth long after the men 352 00:10:58,490 --> 00:10:58,500 data to earth long after the men 353 00:10:58,500 --> 00:11:02,750 data to earth long after the men themselves had left one of the 354 00:11:02,750 --> 00:11:02,760 themselves had left one of the 355 00:11:02,760 --> 00:11:04,900 themselves had left one of the instruments relatively simple in concept 356 00:11:04,900 --> 00:11:04,910 instruments relatively simple in concept 357 00:11:04,910 --> 00:11:07,250 instruments relatively simple in concept was a reflecting device which would 358 00:11:07,250 --> 00:11:07,260 was a reflecting device which would 359 00:11:07,260 --> 00:11:09,200 was a reflecting device which would intercept a laser beam from earth and 360 00:11:09,200 --> 00:11:09,210 intercept a laser beam from earth and 361 00:11:09,210 --> 00:11:14,030 intercept a laser beam from earth and send it back on itself 362 00:11:14,030 --> 00:11:14,040 363 00:11:14,040 --> 00:11:16,200 measuring the time it took the beam to 364 00:11:16,200 --> 00:11:16,210 measuring the time it took the beam to 365 00:11:16,210 --> 00:11:17,760 measuring the time it took the beam to travel from the earth to the moon and 366 00:11:17,760 --> 00:11:17,770 travel from the earth to the moon and 367 00:11:17,770 --> 00:11:18,240 travel from the earth to the moon and back 368 00:11:18,240 --> 00:11:18,250 back 369 00:11:18,250 --> 00:11:20,340 back scientists could calculate the distance 370 00:11:20,340 --> 00:11:20,350 scientists could calculate the distance 371 00:11:20,350 --> 00:11:23,400 scientists could calculate the distance to the moon within a few inches they 372 00:11:23,400 --> 00:11:23,410 to the moon within a few inches they 373 00:11:23,410 --> 00:11:25,080 to the moon within a few inches they will be able to use such precise 374 00:11:25,080 --> 00:11:25,090 will be able to use such precise 375 00:11:25,090 --> 00:11:27,510 will be able to use such precise measurements in studying the earth for 376 00:11:27,510 --> 00:11:27,520 measurements in studying the earth for 377 00:11:27,520 --> 00:11:29,670 measurements in studying the earth for instance the variations in its rotation 378 00:11:29,670 --> 00:11:29,680 instance the variations in its rotation 379 00:11:29,680 --> 00:11:33,480 instance the variations in its rotation rate the wobble of its axis the drift of 380 00:11:33,480 --> 00:11:33,490 rate the wobble of its axis the drift of 381 00:11:33,490 --> 00:11:38,550 rate the wobble of its axis the drift of its continents another of the devices 382 00:11:38,550 --> 00:11:38,560 its continents another of the devices 383 00:11:38,560 --> 00:11:41,100 its continents another of the devices was a seismometer an instrument which 384 00:11:41,100 --> 00:11:41,110 was a seismometer an instrument which 385 00:11:41,110 --> 00:11:43,220 was a seismometer an instrument which detects vibrations of the lunar surface 386 00:11:43,220 --> 00:11:43,230 detects vibrations of the lunar surface 387 00:11:43,230 --> 00:11:45,870 detects vibrations of the lunar surface the vibrations reflect something of the 388 00:11:45,870 --> 00:11:45,880 the vibrations reflect something of the 389 00:11:45,880 --> 00:11:47,340 the vibrations reflect something of the nature of the internal structure and 390 00:11:47,340 --> 00:11:47,350 nature of the internal structure and 391 00:11:47,350 --> 00:11:53,130 nature of the internal structure and energy release of the moon a few months 392 00:11:53,130 --> 00:11:53,140 energy release of the moon a few months 393 00:11:53,140 --> 00:11:55,620 energy release of the moon a few months later when Apollo 12 landed in the ocean 394 00:11:55,620 --> 00:11:55,630 later when Apollo 12 landed in the ocean 395 00:11:55,630 --> 00:11:58,440 later when Apollo 12 landed in the ocean of storms the astronauts given more time 396 00:11:58,440 --> 00:11:58,450 of storms the astronauts given more time 397 00:11:58,450 --> 00:12:00,660 of storms the astronauts given more time for scientific work on the surface were 398 00:12:00,660 --> 00:12:00,670 for scientific work on the surface were 399 00:12:00,670 --> 00:12:02,820 for scientific work on the surface were able to enlarge on all that the Apollo 400 00:12:02,820 --> 00:12:02,830 able to enlarge on all that the Apollo 401 00:12:02,830 --> 00:12:05,640 able to enlarge on all that the Apollo 11 astronauts had accomplished they were 402 00:12:05,640 --> 00:12:05,650 11 astronauts had accomplished they were 403 00:12:05,650 --> 00:12:08,130 11 astronauts had accomplished they were able to range farther collect more and 404 00:12:08,130 --> 00:12:08,140 able to range farther collect more and 405 00:12:08,140 --> 00:12:10,680 able to range farther collect more and better documented samples and set up a 406 00:12:10,680 --> 00:12:10,690 better documented samples and set up a 407 00:12:10,690 --> 00:12:14,370 better documented samples and set up a larger scientific station the scientific 408 00:12:14,370 --> 00:12:14,380 larger scientific station the scientific 409 00:12:14,380 --> 00:12:16,380 larger scientific station the scientific exploration of the moon was now well 410 00:12:16,380 --> 00:12:16,390 exploration of the moon was now well 411 00:12:16,390 --> 00:12:22,110 exploration of the moon was now well underway the lunar materials returned to 412 00:12:22,110 --> 00:12:22,120 underway the lunar materials returned to 413 00:12:22,120 --> 00:12:24,930 underway the lunar materials returned to Earth were met with high excitement more 414 00:12:24,930 --> 00:12:24,940 Earth were met with high excitement more 415 00:12:24,940 --> 00:12:27,480 Earth were met with high excitement more than 140 scientists from this country 416 00:12:27,480 --> 00:12:27,490 than 140 scientists from this country 417 00:12:27,490 --> 00:12:29,760 than 140 scientists from this country and abroad understand two painstaking 418 00:12:29,760 --> 00:12:29,770 and abroad understand two painstaking 419 00:12:29,770 --> 00:12:33,210 and abroad understand two painstaking and intensive investigations we're 420 00:12:33,210 --> 00:12:33,220 and intensive investigations we're 421 00:12:33,220 --> 00:12:35,340 and intensive investigations we're broadening our horizon we were never 422 00:12:35,340 --> 00:12:35,350 broadening our horizon we were never 423 00:12:35,350 --> 00:12:38,340 broadening our horizon we were never able to do that while the intense 424 00:12:38,340 --> 00:12:38,350 able to do that while the intense 425 00:12:38,350 --> 00:12:40,140 able to do that while the intense activity that took place on the surface 426 00:12:40,140 --> 00:12:40,150 activity that took place on the surface 427 00:12:40,150 --> 00:12:41,910 activity that took place on the surface of the earth when it was a young planet 428 00:12:41,910 --> 00:12:41,920 of the earth when it was a young planet 429 00:12:41,920 --> 00:12:44,640 of the earth when it was a young planet had wiped out the record of the first 430 00:12:44,640 --> 00:12:44,650 had wiped out the record of the first 431 00:12:44,650 --> 00:12:46,710 had wiped out the record of the first million years in his history the moon 432 00:12:46,710 --> 00:12:46,720 million years in his history the moon 433 00:12:46,720 --> 00:12:49,710 million years in his history the moon has now restored that missing record in 434 00:12:49,710 --> 00:12:49,720 has now restored that missing record in 435 00:12:49,720 --> 00:12:51,680 has now restored that missing record in so far as we can related to the earth I 436 00:12:51,680 --> 00:12:51,690 so far as we can related to the earth I 437 00:12:51,690 --> 00:12:54,360 so far as we can related to the earth I think it's contact with the feelings of 438 00:12:54,360 --> 00:12:54,370 think it's contact with the feelings of 439 00:12:54,370 --> 00:12:56,160 think it's contact with the feelings of every person not merely with the 440 00:12:56,160 --> 00:12:56,170 every person not merely with the 441 00:12:56,170 --> 00:12:58,020 every person not merely with the specialists regarding what he's doing 442 00:12:58,020 --> 00:12:58,030 specialists regarding what he's doing 443 00:12:58,030 --> 00:13:02,700 specialists regarding what he's doing here on the face of this planet typical 444 00:13:02,700 --> 00:13:02,710 here on the face of this planet typical 445 00:13:02,710 --> 00:13:04,500 here on the face of this planet typical of the detailed efforts were studies 446 00:13:04,500 --> 00:13:04,510 of the detailed efforts were studies 447 00:13:04,510 --> 00:13:07,170 of the detailed efforts were studies with electron microscopes which produced 448 00:13:07,170 --> 00:13:07,180 with electron microscopes which produced 449 00:13:07,180 --> 00:13:09,810 with electron microscopes which produced magnifications up to 1 million times and 450 00:13:09,810 --> 00:13:09,820 magnifications up to 1 million times and 451 00:13:09,820 --> 00:13:17,950 magnifications up to 1 million times and more 452 00:13:17,950 --> 00:13:17,960 453 00:13:17,960 --> 00:13:21,140 for some of these studies samples were 454 00:13:21,140 --> 00:13:21,150 for some of these studies samples were 455 00:13:21,150 --> 00:13:22,730 for some of these studies samples were sectioned with a knife which has the 456 00:13:22,730 --> 00:13:22,740 sectioned with a knife which has the 457 00:13:22,740 --> 00:13:25,640 sectioned with a knife which has the sharpest edge known it can split a hair 458 00:13:25,640 --> 00:13:25,650 sharpest edge known it can split a hair 459 00:13:25,650 --> 00:13:33,710 sharpest edge known it can split a hair into ten thousand sections the 460 00:13:33,710 --> 00:13:33,720 into ten thousand sections the 461 00:13:33,720 --> 00:13:35,810 into ten thousand sections the scientists often felt a sense of wonder 462 00:13:35,810 --> 00:13:35,820 scientists often felt a sense of wonder 463 00:13:35,820 --> 00:13:40,280 scientists often felt a sense of wonder what they saw dot which looks like gray 464 00:13:40,280 --> 00:13:40,290 what they saw dot which looks like gray 465 00:13:40,290 --> 00:13:42,130 what they saw dot which looks like gray material without interest has 466 00:13:42,130 --> 00:13:42,140 material without interest has 467 00:13:42,140 --> 00:13:44,720 material without interest has exceedingly beautiful and varied forms 468 00:13:44,720 --> 00:13:44,730 exceedingly beautiful and varied forms 469 00:13:44,730 --> 00:13:46,790 exceedingly beautiful and varied forms just from an aesthetic standpoint as 470 00:13:46,790 --> 00:13:46,800 just from an aesthetic standpoint as 471 00:13:46,800 --> 00:13:48,170 just from an aesthetic standpoint as well of course from a scientific 472 00:13:48,170 --> 00:13:48,180 well of course from a scientific 473 00:13:48,180 --> 00:13:49,610 well of course from a scientific standpoint when you put it under the 474 00:13:49,610 --> 00:13:49,620 standpoint when you put it under the 475 00:13:49,620 --> 00:13:51,470 standpoint when you put it under the microscope the material is just 476 00:13:51,470 --> 00:13:51,480 microscope the material is just 477 00:13:51,480 --> 00:13:53,660 microscope the material is just beautiful aesthetically and of course 478 00:13:53,660 --> 00:13:53,670 beautiful aesthetically and of course 479 00:13:53,670 --> 00:13:54,730 beautiful aesthetically and of course it's beautiful 480 00:13:54,730 --> 00:13:54,740 it's beautiful 481 00:13:54,740 --> 00:13:59,330 it's beautiful scientifically among the materials there 482 00:13:59,330 --> 00:13:59,340 scientifically among the materials there 483 00:13:59,340 --> 00:14:01,370 scientifically among the materials there are crystalline rocks clearly marked as 484 00:14:01,370 --> 00:14:01,380 are crystalline rocks clearly marked as 485 00:14:01,380 --> 00:14:03,890 are crystalline rocks clearly marked as igneous by bubble-like cavities and by 486 00:14:03,890 --> 00:14:03,900 igneous by bubble-like cavities and by 487 00:14:03,900 --> 00:14:06,410 igneous by bubble-like cavities and by their chemistry they were crystallized 488 00:14:06,410 --> 00:14:06,420 their chemistry they were crystallized 489 00:14:06,420 --> 00:14:09,260 their chemistry they were crystallized from molten silicon material in a lunar 490 00:14:09,260 --> 00:14:09,270 from molten silicon material in a lunar 491 00:14:09,270 --> 00:14:11,030 from molten silicon material in a lunar inferno with temperatures well over 492 00:14:11,030 --> 00:14:11,040 inferno with temperatures well over 493 00:14:11,040 --> 00:14:17,600 inferno with temperatures well over 2,000 degrees Fahrenheit there are other 494 00:14:17,600 --> 00:14:17,610 2,000 degrees Fahrenheit there are other 495 00:14:17,610 --> 00:14:19,550 2,000 degrees Fahrenheit there are other rocks which consist of fragments of the 496 00:14:19,550 --> 00:14:19,560 rocks which consist of fragments of the 497 00:14:19,560 --> 00:14:21,580 rocks which consist of fragments of the igneous rocks embedded in lunar soil 498 00:14:21,580 --> 00:14:21,590 igneous rocks embedded in lunar soil 499 00:14:21,590 --> 00:14:24,800 igneous rocks embedded in lunar soil call Breck Sia's they were formed when 500 00:14:24,800 --> 00:14:24,810 call Breck Sia's they were formed when 501 00:14:24,810 --> 00:14:26,710 call Breck Sia's they were formed when meteorites impacted on the surface 502 00:14:26,710 --> 00:14:26,720 meteorites impacted on the surface 503 00:14:26,720 --> 00:14:29,360 meteorites impacted on the surface producing such tremendous pressures that 504 00:14:29,360 --> 00:14:29,370 producing such tremendous pressures that 505 00:14:29,370 --> 00:14:31,760 producing such tremendous pressures that rubble and soil were welded into solid 506 00:14:31,760 --> 00:14:31,770 rubble and soil were welded into solid 507 00:14:31,770 --> 00:14:36,610 rubble and soil were welded into solid rock 508 00:14:36,610 --> 00:14:36,620 509 00:14:36,620 --> 00:14:39,170 both the igneous rocks and the breck 510 00:14:39,170 --> 00:14:39,180 both the igneous rocks and the breck 511 00:14:39,180 --> 00:14:40,880 both the igneous rocks and the breck Sia's they are clear witness to 512 00:14:40,880 --> 00:14:40,890 Sia's they are clear witness to 513 00:14:40,890 --> 00:14:43,550 Sia's they are clear witness to prolonged meteorite bombardment they 514 00:14:43,550 --> 00:14:43,560 prolonged meteorite bombardment they 515 00:14:43,560 --> 00:14:45,410 prolonged meteorite bombardment they have been rounded as if they had been 516 00:14:45,410 --> 00:14:45,420 have been rounded as if they had been 517 00:14:45,420 --> 00:14:49,070 have been rounded as if they had been severely sandblasted pitted where they 518 00:14:49,070 --> 00:14:49,080 severely sandblasted pitted where they 519 00:14:49,080 --> 00:14:50,480 severely sandblasted pitted where they have been struck by micrometeorites 520 00:14:50,480 --> 00:14:50,490 have been struck by micrometeorites 521 00:14:50,490 --> 00:14:58,700 have been struck by micrometeorites traveling at high velocity and some 522 00:14:58,700 --> 00:14:58,710 traveling at high velocity and some 523 00:14:58,710 --> 00:15:01,700 traveling at high velocity and some coated with glass a material which had 524 00:15:01,700 --> 00:15:01,710 coated with glass a material which had 525 00:15:01,710 --> 00:15:03,440 coated with glass a material which had been melted and splashed by a meteorite 526 00:15:03,440 --> 00:15:03,450 been melted and splashed by a meteorite 527 00:15:03,450 --> 00:15:11,360 been melted and splashed by a meteorite impact 528 00:15:11,360 --> 00:15:11,370 529 00:15:11,370 --> 00:15:14,610 rocks from Apollo 11 and Apollo 12 are 530 00:15:14,610 --> 00:15:14,620 rocks from Apollo 11 and Apollo 12 are 531 00:15:14,620 --> 00:15:16,980 rocks from Apollo 11 and Apollo 12 are in some ways similar but there were 532 00:15:16,980 --> 00:15:16,990 in some ways similar but there were 533 00:15:16,990 --> 00:15:18,750 in some ways similar but there were important differences in chemistry 534 00:15:18,750 --> 00:15:18,760 important differences in chemistry 535 00:15:18,760 --> 00:15:22,230 important differences in chemistry mineral composition and texture further 536 00:15:22,230 --> 00:15:22,240 mineral composition and texture further 537 00:15:22,240 --> 00:15:24,840 mineral composition and texture further the minerals of the Apollo 11 marks took 538 00:15:24,840 --> 00:15:24,850 the minerals of the Apollo 11 marks took 539 00:15:24,850 --> 00:15:27,330 the minerals of the Apollo 11 marks took on their present arrangement about 3.7 540 00:15:27,330 --> 00:15:27,340 on their present arrangement about 3.7 541 00:15:27,340 --> 00:15:30,090 on their present arrangement about 3.7 billion years ago the minerals of the 542 00:15:30,090 --> 00:15:30,100 billion years ago the minerals of the 543 00:15:30,100 --> 00:15:34,320 billion years ago the minerals of the Apollo 12 rocks about 3.3 or 3.4 billion 544 00:15:34,320 --> 00:15:34,330 Apollo 12 rocks about 3.3 or 3.4 billion 545 00:15:34,330 --> 00:15:37,170 Apollo 12 rocks about 3.3 or 3.4 billion years ago an indication of two different 546 00:15:37,170 --> 00:15:37,180 years ago an indication of two different 547 00:15:37,180 --> 00:15:39,390 years ago an indication of two different events separated by several hundred 548 00:15:39,390 --> 00:15:39,400 events separated by several hundred 549 00:15:39,400 --> 00:15:42,360 events separated by several hundred million years the ages were far greater 550 00:15:42,360 --> 00:15:42,370 million years the ages were far greater 551 00:15:42,370 --> 00:15:45,210 million years the ages were far greater than many expected it was probably 552 00:15:45,210 --> 00:15:45,220 than many expected it was probably 553 00:15:45,220 --> 00:15:47,250 than many expected it was probably during this time more than three billion 554 00:15:47,250 --> 00:15:47,260 during this time more than three billion 555 00:15:47,260 --> 00:15:49,530 during this time more than three billion years ago that the Maurya basins were 556 00:15:49,530 --> 00:15:49,540 years ago that the Maurya basins were 557 00:15:49,540 --> 00:15:53,160 years ago that the Maurya basins were filled while the opponent well rocks 558 00:15:53,160 --> 00:15:53,170 filled while the opponent well rocks 559 00:15:53,170 --> 00:15:55,290 filled while the opponent well rocks were generally somewhat younger the 560 00:15:55,290 --> 00:15:55,300 were generally somewhat younger the 561 00:15:55,300 --> 00:15:57,300 were generally somewhat younger the collection did yield one unique and 562 00:15:57,300 --> 00:15:57,310 collection did yield one unique and 563 00:15:57,310 --> 00:16:00,840 collection did yield one unique and quite complicated Rock number 13 now 564 00:16:00,840 --> 00:16:00,850 quite complicated Rock number 13 now 565 00:16:00,850 --> 00:16:03,990 quite complicated Rock number 13 now famous in lunar science portions of rock 566 00:16:03,990 --> 00:16:04,000 famous in lunar science portions of rock 567 00:16:04,000 --> 00:16:07,410 famous in lunar science portions of rock 13 proved to be some 4.6 billion years 568 00:16:07,410 --> 00:16:07,420 13 proved to be some 4.6 billion years 569 00:16:07,420 --> 00:16:09,930 13 proved to be some 4.6 billion years old very merely the age of the solar 570 00:16:09,930 --> 00:16:09,940 old very merely the age of the solar 571 00:16:09,940 --> 00:16:12,660 old very merely the age of the solar system itself this may be some 572 00:16:12,660 --> 00:16:12,670 system itself this may be some 573 00:16:12,670 --> 00:16:14,460 system itself this may be some indication of what to expect from the 574 00:16:14,460 --> 00:16:14,470 indication of what to expect from the 575 00:16:14,470 --> 00:16:18,870 indication of what to expect from the lunar Highlands another type of material 576 00:16:18,870 --> 00:16:18,880 lunar Highlands another type of material 577 00:16:18,880 --> 00:16:21,540 lunar Highlands another type of material is the lunar soil created apparently as 578 00:16:21,540 --> 00:16:21,550 is the lunar soil created apparently as 579 00:16:21,550 --> 00:16:24,260 is the lunar soil created apparently as rocks had been pulverized by bombardment 580 00:16:24,260 --> 00:16:24,270 rocks had been pulverized by bombardment 581 00:16:24,270 --> 00:16:27,240 rocks had been pulverized by bombardment one core tube sample from the Apollo 12 582 00:16:27,240 --> 00:16:27,250 one core tube sample from the Apollo 12 583 00:16:27,250 --> 00:16:29,550 one core tube sample from the Apollo 12 landing site showed the soil was 584 00:16:29,550 --> 00:16:29,560 landing site showed the soil was 585 00:16:29,560 --> 00:16:31,740 landing site showed the soil was stratified or layered with lighter 586 00:16:31,740 --> 00:16:31,750 stratified or layered with lighter 587 00:16:31,750 --> 00:16:34,500 stratified or layered with lighter darker bands of material they even 588 00:16:34,500 --> 00:16:34,510 darker bands of material they even 589 00:16:34,510 --> 00:16:35,790 darker bands of material they even seemed that one layer might have a 590 00:16:35,790 --> 00:16:35,800 seemed that one layer might have a 591 00:16:35,800 --> 00:16:40,350 seemed that one layer might have a mixture of volcanic ash under the 592 00:16:40,350 --> 00:16:40,360 mixture of volcanic ash under the 593 00:16:40,360 --> 00:16:42,510 mixture of volcanic ash under the microscope it can be seen that the soil 594 00:16:42,510 --> 00:16:42,520 microscope it can be seen that the soil 595 00:16:42,520 --> 00:16:44,870 microscope it can be seen that the soil consists of tiny fragments of rocks 596 00:16:44,870 --> 00:16:44,880 consists of tiny fragments of rocks 597 00:16:44,880 --> 00:16:47,280 consists of tiny fragments of rocks particles of glass and bits of 598 00:16:47,280 --> 00:16:47,290 particles of glass and bits of 599 00:16:47,290 --> 00:16:49,890 particles of glass and bits of meteorites even the soil shows evidence 600 00:16:49,890 --> 00:16:49,900 meteorites even the soil shows evidence 601 00:16:49,900 --> 00:16:52,770 meteorites even the soil shows evidence of bombardment some of the individual 602 00:16:52,770 --> 00:16:52,780 of bombardment some of the individual 603 00:16:52,780 --> 00:16:55,170 of bombardment some of the individual brains have been so pitted in fact that 604 00:16:55,170 --> 00:16:55,180 brains have been so pitted in fact that 605 00:16:55,180 --> 00:16:57,150 brains have been so pitted in fact that they look almost like tiny replicas of 606 00:16:57,150 --> 00:16:57,160 they look almost like tiny replicas of 607 00:16:57,160 --> 00:17:02,560 they look almost like tiny replicas of the moon itself 608 00:17:02,560 --> 00:17:02,570 609 00:17:02,570 --> 00:17:04,870 in examining the lunar soils and Breck 610 00:17:04,870 --> 00:17:04,880 in examining the lunar soils and Breck 611 00:17:04,880 --> 00:17:07,420 in examining the lunar soils and Breck sees scientists have found an abundance 612 00:17:07,420 --> 00:17:07,430 sees scientists have found an abundance 613 00:17:07,430 --> 00:17:09,430 sees scientists have found an abundance of products of the solar wind the 614 00:17:09,430 --> 00:17:09,440 of products of the solar wind the 615 00:17:09,440 --> 00:17:15,540 of products of the solar wind the streams of particles flung off the Sun 616 00:17:15,540 --> 00:17:15,550 617 00:17:15,550 --> 00:17:18,520 they have found in fact that if an ounce 618 00:17:18,520 --> 00:17:18,530 they have found in fact that if an ounce 619 00:17:18,530 --> 00:17:20,980 they have found in fact that if an ounce of lunar soil is heated to about 1,800 620 00:17:20,980 --> 00:17:20,990 of lunar soil is heated to about 1,800 621 00:17:20,990 --> 00:17:22,960 of lunar soil is heated to about 1,800 degrees Fahrenheit at an atmospheric 622 00:17:22,960 --> 00:17:22,970 degrees Fahrenheit at an atmospheric 623 00:17:22,970 --> 00:17:24,700 degrees Fahrenheit at an atmospheric pressure equal to that at sea level 624 00:17:24,700 --> 00:17:24,710 pressure equal to that at sea level 625 00:17:24,710 --> 00:17:27,340 pressure equal to that at sea level about 12 cubic inches of gas will be 626 00:17:27,340 --> 00:17:27,350 about 12 cubic inches of gas will be 627 00:17:27,350 --> 00:17:29,730 about 12 cubic inches of gas will be produced primarily hydrogen and helium 628 00:17:29,730 --> 00:17:29,740 produced primarily hydrogen and helium 629 00:17:29,740 --> 00:17:33,520 produced primarily hydrogen and helium directly from the Sun it is possible 630 00:17:33,520 --> 00:17:33,530 directly from the Sun it is possible 631 00:17:33,530 --> 00:17:36,100 directly from the Sun it is possible using the moon materials to go back and 632 00:17:36,100 --> 00:17:36,110 using the moon materials to go back and 633 00:17:36,110 --> 00:17:39,430 using the moon materials to go back and trace the behavior of the Sun almost 634 00:17:39,430 --> 00:17:39,440 trace the behavior of the Sun almost 635 00:17:39,440 --> 00:17:40,750 trace the behavior of the Sun almost back to the beginning of the solar 636 00:17:40,750 --> 00:17:40,760 back to the beginning of the solar 637 00:17:40,760 --> 00:17:41,590 back to the beginning of the solar system 638 00:17:41,590 --> 00:17:41,600 system 639 00:17:41,600 --> 00:17:43,450 system the interesting part about the solar 640 00:17:43,450 --> 00:17:43,460 the interesting part about the solar 641 00:17:43,460 --> 00:17:45,490 the interesting part about the solar wind is that it represents the actual 642 00:17:45,490 --> 00:17:45,500 wind is that it represents the actual 643 00:17:45,500 --> 00:17:48,370 wind is that it represents the actual stuff of the Sun if you had in Turkey 644 00:17:48,370 --> 00:17:48,380 stuff of the Sun if you had in Turkey 645 00:17:48,380 --> 00:17:50,740 stuff of the Sun if you had in Turkey Hamzah maybe the dippy end of the Sun 646 00:17:50,740 --> 00:17:50,750 Hamzah maybe the dippy end of the Sun 647 00:17:50,750 --> 00:17:53,320 Hamzah maybe the dippy end of the Sun and reach out and take this material and 648 00:17:53,320 --> 00:17:53,330 and reach out and take this material and 649 00:17:53,330 --> 00:17:56,860 and reach out and take this material and bring it back to your laboratory the 650 00:17:56,860 --> 00:17:56,870 bring it back to your laboratory the 651 00:17:56,870 --> 00:17:58,660 bring it back to your laboratory the lunar materials have also been closely 652 00:17:58,660 --> 00:17:58,670 lunar materials have also been closely 653 00:17:58,670 --> 00:18:01,390 lunar materials have also been closely searched for any trace of life or even 654 00:18:01,390 --> 00:18:01,400 searched for any trace of life or even 655 00:18:01,400 --> 00:18:03,520 searched for any trace of life or even for any materials with organic contents 656 00:18:03,520 --> 00:18:03,530 for any materials with organic contents 657 00:18:03,530 --> 00:18:05,470 for any materials with organic contents it has been a search which the 658 00:18:05,470 --> 00:18:05,480 it has been a search which the 659 00:18:05,480 --> 00:18:07,210 it has been a search which the scientists have so far found to be 660 00:18:07,210 --> 00:18:07,220 scientists have so far found to be 661 00:18:07,220 --> 00:18:12,019 scientists have so far found to be fruitless 662 00:18:12,019 --> 00:18:12,029 663 00:18:12,029 --> 00:18:14,520 you 664 00:18:14,520 --> 00:18:14,530 665 00:18:14,530 --> 00:18:16,470 scientists have found the results more 666 00:18:16,470 --> 00:18:16,480 scientists have found the results more 667 00:18:16,480 --> 00:18:18,480 scientists have found the results more interesting however when earth organisms 668 00:18:18,480 --> 00:18:18,490 interesting however when earth organisms 669 00:18:18,490 --> 00:18:22,590 interesting however when earth organisms have been exposed to lunar materials of 670 00:18:22,590 --> 00:18:22,600 have been exposed to lunar materials of 671 00:18:22,600 --> 00:18:25,860 have been exposed to lunar materials of the variety of biological systems that 672 00:18:25,860 --> 00:18:25,870 the variety of biological systems that 673 00:18:25,870 --> 00:18:28,890 the variety of biological systems that we tested with the lunar material the 674 00:18:28,890 --> 00:18:28,900 we tested with the lunar material the 675 00:18:28,900 --> 00:18:31,500 we tested with the lunar material the plants were most unique in their 676 00:18:31,500 --> 00:18:31,510 plants were most unique in their 677 00:18:31,510 --> 00:18:34,920 plants were most unique in their response for example the five jars of 678 00:18:34,920 --> 00:18:34,930 response for example the five jars of 679 00:18:34,930 --> 00:18:37,560 response for example the five jars of liverworts you see illustrated on the 680 00:18:37,560 --> 00:18:37,570 liverworts you see illustrated on the 681 00:18:37,570 --> 00:18:41,040 liverworts you see illustrated on the top gave much increased growth in the 682 00:18:41,040 --> 00:18:41,050 top gave much increased growth in the 683 00:18:41,050 --> 00:18:43,740 top gave much increased growth in the presence of lunar material this effect 684 00:18:43,740 --> 00:18:43,750 presence of lunar material this effect 685 00:18:43,750 --> 00:18:46,530 presence of lunar material this effect was noted for ferns a number of tissue 686 00:18:46,530 --> 00:18:46,540 was noted for ferns a number of tissue 687 00:18:46,540 --> 00:18:48,990 was noted for ferns a number of tissue cultures such as tobacco and corn and 688 00:18:48,990 --> 00:18:49,000 cultures such as tobacco and corn and 689 00:18:49,000 --> 00:18:51,630 cultures such as tobacco and corn and certain higher plant species such as 690 00:18:51,630 --> 00:18:51,640 certain higher plant species such as 691 00:18:51,640 --> 00:18:54,840 certain higher plant species such as lettuce now the exact reasons for this 692 00:18:54,840 --> 00:18:54,850 lettuce now the exact reasons for this 693 00:18:54,850 --> 00:18:57,480 lettuce now the exact reasons for this beneficial response are unknown at the 694 00:18:57,480 --> 00:18:57,490 beneficial response are unknown at the 695 00:18:57,490 --> 00:19:01,140 beneficial response are unknown at the present however it is likely that some 696 00:19:01,140 --> 00:19:01,150 present however it is likely that some 697 00:19:01,150 --> 00:19:05,670 present however it is likely that some trace mineral or perhaps even a physical 698 00:19:05,670 --> 00:19:05,680 trace mineral or perhaps even a physical 699 00:19:05,680 --> 00:19:07,790 trace mineral or perhaps even a physical property of the lunar material is 700 00:19:07,790 --> 00:19:07,800 property of the lunar material is 701 00:19:07,800 --> 00:19:10,290 property of the lunar material is interacting with the minerals we furnish 702 00:19:10,290 --> 00:19:10,300 interacting with the minerals we furnish 703 00:19:10,300 --> 00:19:13,170 interacting with the minerals we furnish to give a more desirable medium for 704 00:19:13,170 --> 00:19:13,180 to give a more desirable medium for 705 00:19:13,180 --> 00:19:16,320 to give a more desirable medium for plant growth this is a very exciting 706 00:19:16,320 --> 00:19:16,330 plant growth this is a very exciting 707 00:19:16,330 --> 00:19:18,690 plant growth this is a very exciting discovery and one that was totally 708 00:19:18,690 --> 00:19:18,700 discovery and one that was totally 709 00:19:18,700 --> 00:19:21,840 discovery and one that was totally unexpected in the tests conducted in the 710 00:19:21,840 --> 00:19:21,850 unexpected in the tests conducted in the 711 00:19:21,850 --> 00:19:27,090 unexpected in the tests conducted in the lunar receiving laboratory the flooded 712 00:19:27,090 --> 00:19:27,100 lunar receiving laboratory the flooded 713 00:19:27,100 --> 00:19:29,190 lunar receiving laboratory the flooded information derived lunar materials 714 00:19:29,190 --> 00:19:29,200 information derived lunar materials 715 00:19:29,200 --> 00:19:29,760 information derived lunar materials alone 716 00:19:29,760 --> 00:19:29,770 alone 717 00:19:29,770 --> 00:19:34,340 alone will require decades to interpret fully 718 00:19:34,340 --> 00:19:34,350 719 00:19:34,350 --> 00:19:37,320 in the mean time however still more 720 00:19:37,320 --> 00:19:37,330 in the mean time however still more 721 00:19:37,330 --> 00:19:38,970 in the mean time however still more information is flowing in from the 722 00:19:38,970 --> 00:19:38,980 information is flowing in from the 723 00:19:38,980 --> 00:19:40,650 information is flowing in from the scientific instruments set up by the 724 00:19:40,650 --> 00:19:40,660 scientific instruments set up by the 725 00:19:40,660 --> 00:19:43,320 scientific instruments set up by the astronauts scientists received one of 726 00:19:43,320 --> 00:19:43,330 astronauts scientists received one of 727 00:19:43,330 --> 00:19:45,240 astronauts scientists received one of their biggest surprises when the Apollo 728 00:19:45,240 --> 00:19:45,250 their biggest surprises when the Apollo 729 00:19:45,250 --> 00:19:47,580 their biggest surprises when the Apollo 12 seismometer told the story of how the 730 00:19:47,580 --> 00:19:47,590 12 seismometer told the story of how the 731 00:19:47,590 --> 00:19:49,800 12 seismometer told the story of how the moon vibrated when it was struck by the 732 00:19:49,800 --> 00:19:49,810 moon vibrated when it was struck by the 733 00:19:49,810 --> 00:19:53,460 moon vibrated when it was struck by the astronauts abandoned lunar module it is 734 00:19:53,460 --> 00:19:53,470 astronauts abandoned lunar module it is 735 00:19:53,470 --> 00:19:57,510 astronauts abandoned lunar module it is as though one had struck a belt in the 736 00:19:57,510 --> 00:19:57,520 as though one had struck a belt in the 737 00:19:57,520 --> 00:20:00,750 as though one had struck a belt in the belfry of the church a single blow and 738 00:20:00,750 --> 00:20:00,760 belfry of the church a single blow and 739 00:20:00,760 --> 00:20:03,210 belfry of the church a single blow and found that the reverberation from it 740 00:20:03,210 --> 00:20:03,220 found that the reverberation from it 741 00:20:03,220 --> 00:20:06,510 found that the reverberation from it continued for 30 minutes the signal 742 00:20:06,510 --> 00:20:06,520 continued for 30 minutes the signal 743 00:20:06,520 --> 00:20:08,370 continued for 30 minutes the signal seemed to indicate that the energy the 744 00:20:08,370 --> 00:20:08,380 seemed to indicate that the energy the 745 00:20:08,380 --> 00:20:09,030 seemed to indicate that the energy the impact 746 00:20:09,030 --> 00:20:09,040 impact 747 00:20:09,040 --> 00:20:11,520 impact scattered greatly on one hand but had a 748 00:20:11,520 --> 00:20:11,530 scattered greatly on one hand but had a 749 00:20:11,530 --> 00:20:14,190 scattered greatly on one hand but had a prolonged duration on the other such a 750 00:20:14,190 --> 00:20:14,200 prolonged duration on the other such a 751 00:20:14,200 --> 00:20:16,170 prolonged duration on the other such a combination of characteristics simply 752 00:20:16,170 --> 00:20:16,180 combination of characteristics simply 753 00:20:16,180 --> 00:20:19,320 combination of characteristics simply does not occur on earth subsequently 754 00:20:19,320 --> 00:20:19,330 does not occur on earth subsequently 755 00:20:19,330 --> 00:20:21,750 does not occur on earth subsequently signals of a similar nature will receive 756 00:20:21,750 --> 00:20:21,760 signals of a similar nature will receive 757 00:20:21,760 --> 00:20:24,030 signals of a similar nature will receive from other impacts both natural and 758 00:20:24,030 --> 00:20:24,040 from other impacts both natural and 759 00:20:24,040 --> 00:20:27,560 from other impacts both natural and man-made 760 00:20:27,560 --> 00:20:27,570 761 00:20:27,570 --> 00:20:30,450 after analyzing signals recorded over 762 00:20:30,450 --> 00:20:30,460 after analyzing signals recorded over 763 00:20:30,460 --> 00:20:32,460 after analyzing signals recorded over several months scientists also 764 00:20:32,460 --> 00:20:32,470 several months scientists also 765 00:20:32,470 --> 00:20:35,130 several months scientists also discovered evidence of moon quakes these 766 00:20:35,130 --> 00:20:35,140 discovered evidence of moon quakes these 767 00:20:35,140 --> 00:20:36,840 discovered evidence of moon quakes these occurred each time the moon passed 768 00:20:36,840 --> 00:20:36,850 occurred each time the moon passed 769 00:20:36,850 --> 00:20:38,460 occurred each time the moon passed through the point of its orbit closest 770 00:20:38,460 --> 00:20:38,470 through the point of its orbit closest 771 00:20:38,470 --> 00:20:40,350 through the point of its orbit closest to Earth when there was maximum 772 00:20:40,350 --> 00:20:40,360 to Earth when there was maximum 773 00:20:40,360 --> 00:20:42,120 to Earth when there was maximum gravitational attraction between the two 774 00:20:42,120 --> 00:20:42,130 gravitational attraction between the two 775 00:20:42,130 --> 00:20:44,970 gravitational attraction between the two bodies apparently the attraction 776 00:20:44,970 --> 00:20:44,980 bodies apparently the attraction 777 00:20:44,980 --> 00:20:46,380 bodies apparently the attraction triggered the quakes and they were 778 00:20:46,380 --> 00:20:46,390 triggered the quakes and they were 779 00:20:46,390 --> 00:20:50,190 triggered the quakes and they were possibly a volcanic origin so far 780 00:20:50,190 --> 00:20:50,200 possibly a volcanic origin so far 781 00:20:50,200 --> 00:20:52,950 possibly a volcanic origin so far however the seismometer detected those 782 00:20:52,950 --> 00:20:52,960 however the seismometer detected those 783 00:20:52,960 --> 00:20:54,630 however the seismometer detected those signals that would indicate events 784 00:20:54,630 --> 00:20:54,640 signals that would indicate events 785 00:20:54,640 --> 00:20:57,480 signals that would indicate events originating deep within the moon such 786 00:20:57,480 --> 00:20:57,490 originating deep within the moon such 787 00:20:57,490 --> 00:21:02,549 originating deep within the moon such events occur frequently under the upshot 788 00:21:02,549 --> 00:21:02,559 events occur frequently under the upshot 789 00:21:02,559 --> 00:21:04,350 events occur frequently under the upshot is that the meaning of the signals is 790 00:21:04,350 --> 00:21:04,360 is that the meaning of the signals is 791 00:21:04,360 --> 00:21:07,320 is that the meaning of the signals is far from understood from other 792 00:21:07,320 --> 00:21:07,330 far from understood from other 793 00:21:07,330 --> 00:21:09,720 far from understood from other instruments scientists are harvesting 794 00:21:09,720 --> 00:21:09,730 instruments scientists are harvesting 795 00:21:09,730 --> 00:21:12,870 instruments scientists are harvesting rich new information on the magnetic 796 00:21:12,870 --> 00:21:12,880 rich new information on the magnetic 797 00:21:12,880 --> 00:21:15,870 rich new information on the magnetic fields of the moon and of the earth the 798 00:21:15,870 --> 00:21:15,880 fields of the moon and of the earth the 799 00:21:15,880 --> 00:21:18,500 fields of the moon and of the earth the extremely thin atmosphere of the moon 800 00:21:18,500 --> 00:21:18,510 extremely thin atmosphere of the moon 801 00:21:18,510 --> 00:21:21,210 extremely thin atmosphere of the moon the rate at which particles stream away 802 00:21:21,210 --> 00:21:21,220 the rate at which particles stream away 803 00:21:21,220 --> 00:21:25,440 the rate at which particles stream away from the Sun for a long time to come 804 00:21:25,440 --> 00:21:25,450 from the Sun for a long time to come 805 00:21:25,450 --> 00:21:27,330 from the Sun for a long time to come scientists will be putting bits and 806 00:21:27,330 --> 00:21:27,340 scientists will be putting bits and 807 00:21:27,340 --> 00:21:29,370 scientists will be putting bits and pieces together searching out the 808 00:21:29,370 --> 00:21:29,380 pieces together searching out the 809 00:21:29,380 --> 00:21:32,220 pieces together searching out the answers to a long list of questions but 810 00:21:32,220 --> 00:21:32,230 answers to a long list of questions but 811 00:21:32,230 --> 00:21:34,169 answers to a long list of questions but already certain parts of the whole 812 00:21:34,169 --> 00:21:34,179 already certain parts of the whole 813 00:21:34,179 --> 00:21:37,460 already certain parts of the whole picture are beginning to take shape and 814 00:21:37,460 --> 00:21:37,470 picture are beginning to take shape and 815 00:21:37,470 --> 00:21:40,590 picture are beginning to take shape and the moon is by far our more interesting 816 00:21:40,590 --> 00:21:40,600 the moon is by far our more interesting 817 00:21:40,600 --> 00:21:45,830 the moon is by far our more interesting and complex body than ever anticipated 818 00:21:45,830 --> 00:21:45,840 819 00:21:45,840 --> 00:21:48,480 although every current theory about the 820 00:21:48,480 --> 00:21:48,490 although every current theory about the 821 00:21:48,490 --> 00:21:51,480 although every current theory about the moon's origin has major flaws it does 822 00:21:51,480 --> 00:21:51,490 moon's origin has major flaws it does 823 00:21:51,490 --> 00:21:53,460 moon's origin has major flaws it does seem probable that the major events in 824 00:21:53,460 --> 00:21:53,470 seem probable that the major events in 825 00:21:53,470 --> 00:21:55,289 seem probable that the major events in the formation and evolution of the moon 826 00:21:55,289 --> 00:21:55,299 the formation and evolution of the moon 827 00:21:55,299 --> 00:21:58,049 the formation and evolution of the moon occurred early in its history and that 828 00:21:58,049 --> 00:21:58,059 occurred early in its history and that 829 00:21:58,059 --> 00:21:59,549 occurred early in its history and that relatively little has happened since 830 00:21:59,549 --> 00:21:59,559 relatively little has happened since 831 00:21:59,559 --> 00:22:02,669 relatively little has happened since then one indication of this is the far 832 00:22:02,669 --> 00:22:02,679 then one indication of this is the far 833 00:22:02,679 --> 00:22:04,409 then one indication of this is the far greater frequency of craters in the 834 00:22:04,409 --> 00:22:04,419 greater frequency of craters in the 835 00:22:04,419 --> 00:22:06,600 greater frequency of craters in the highlands than in the Maurya which are 836 00:22:06,600 --> 00:22:06,610 highlands than in the Maurya which are 837 00:22:06,610 --> 00:22:09,390 highlands than in the Maurya which are themselves very old and it means that 838 00:22:09,390 --> 00:22:09,400 themselves very old and it means that 839 00:22:09,400 --> 00:22:11,100 themselves very old and it means that the moon may hold records of events 840 00:22:11,100 --> 00:22:11,110 the moon may hold records of events 841 00:22:11,110 --> 00:22:12,870 the moon may hold records of events which have long since been obliterated 842 00:22:12,870 --> 00:22:12,880 which have long since been obliterated 843 00:22:12,880 --> 00:22:18,000 which have long since been obliterated from Earth by erosion structurally the 844 00:22:18,000 --> 00:22:18,010 from Earth by erosion structurally the 845 00:22:18,010 --> 00:22:20,130 from Earth by erosion structurally the moon compared with the earth is an 846 00:22:20,130 --> 00:22:20,140 moon compared with the earth is an 847 00:22:20,140 --> 00:22:22,890 moon compared with the earth is an extremely strong and rigid body as it 848 00:22:22,890 --> 00:22:22,900 extremely strong and rigid body as it 849 00:22:22,900 --> 00:22:24,360 extremely strong and rigid body as it would have to be to support the great 850 00:22:24,360 --> 00:22:24,370 would have to be to support the great 851 00:22:24,370 --> 00:22:28,110 would have to be to support the great mass concentrations mass comes so near 852 00:22:28,110 --> 00:22:28,120 mass concentrations mass comes so near 853 00:22:28,120 --> 00:22:31,329 mass concentrations mass comes so near the surface 854 00:22:31,329 --> 00:22:31,339 855 00:22:31,339 --> 00:22:33,560 scientists have seen that great heating 856 00:22:33,560 --> 00:22:33,570 scientists have seen that great heating 857 00:22:33,570 --> 00:22:35,449 scientists have seen that great heating has played a major role in shaping the 858 00:22:35,449 --> 00:22:35,459 has played a major role in shaping the 859 00:22:35,459 --> 00:22:38,719 has played a major role in shaping the moon's face in fact the Maurya basins 860 00:22:38,719 --> 00:22:38,729 moon's face in fact the Maurya basins 861 00:22:38,729 --> 00:22:41,199 moon's face in fact the Maurya basins were filled with lava flows 862 00:22:41,199 --> 00:22:41,209 were filled with lava flows 863 00:22:41,209 --> 00:22:44,149 were filled with lava flows they have also seen that impact has 864 00:22:44,149 --> 00:22:44,159 they have also seen that impact has 865 00:22:44,159 --> 00:22:46,789 they have also seen that impact has played a major role both on a gigantic 866 00:22:46,789 --> 00:22:46,799 played a major role both on a gigantic 867 00:22:46,799 --> 00:22:53,499 played a major role both on a gigantic scale and on a microscopic scale 868 00:22:53,499 --> 00:22:53,509 869 00:22:53,509 --> 00:22:56,359 contrary to what many expected there has 870 00:22:56,359 --> 00:22:56,369 contrary to what many expected there has 871 00:22:56,369 --> 00:22:59,689 contrary to what many expected there has been no evidence of water and as most 872 00:22:59,689 --> 00:22:59,699 been no evidence of water and as most 873 00:22:59,699 --> 00:23:02,299 been no evidence of water and as most expected there has been no trace of life 874 00:23:02,299 --> 00:23:02,309 expected there has been no trace of life 875 00:23:02,309 --> 00:23:04,459 expected there has been no trace of life and there seems little chance of finding 876 00:23:04,459 --> 00:23:04,469 and there seems little chance of finding 877 00:23:04,469 --> 00:23:08,689 and there seems little chance of finding any but as often happens in science the 878 00:23:08,689 --> 00:23:08,699 any but as often happens in science the 879 00:23:08,699 --> 00:23:10,879 any but as often happens in science the investigation so far have raised more 880 00:23:10,879 --> 00:23:10,889 investigation so far have raised more 881 00:23:10,889 --> 00:23:12,139 investigation so far have raised more questions than they have provided 882 00:23:12,139 --> 00:23:12,149 questions than they have provided 883 00:23:12,149 --> 00:23:15,409 questions than they have provided answers for instance what is the 884 00:23:15,409 --> 00:23:15,419 answers for instance what is the 885 00:23:15,419 --> 00:23:18,259 answers for instance what is the interior of the Moon like what is the 886 00:23:18,259 --> 00:23:18,269 interior of the Moon like what is the 887 00:23:18,269 --> 00:23:19,699 interior of the Moon like what is the source of the heat that produced the 888 00:23:19,699 --> 00:23:19,709 source of the heat that produced the 889 00:23:19,709 --> 00:23:22,549 source of the heat that produced the lava was it produced in some way and the 890 00:23:22,549 --> 00:23:22,559 lava was it produced in some way and the 891 00:23:22,559 --> 00:23:25,339 lava was it produced in some way and the interior of the Moon or was it generated 892 00:23:25,339 --> 00:23:25,349 interior of the Moon or was it generated 893 00:23:25,349 --> 00:23:28,789 interior of the Moon or was it generated by meteoroid impacts what lies behind 894 00:23:28,789 --> 00:23:28,799 by meteoroid impacts what lies behind 895 00:23:28,799 --> 00:23:30,680 by meteoroid impacts what lies behind the fact that it is the side of the moon 896 00:23:30,680 --> 00:23:30,690 the fact that it is the side of the moon 897 00:23:30,690 --> 00:23:32,779 the fact that it is the side of the moon with a Marya basis that faces us on 898 00:23:32,779 --> 00:23:32,789 with a Marya basis that faces us on 899 00:23:32,789 --> 00:23:40,849 with a Marya basis that faces us on earth what in the tail are the relative 900 00:23:40,849 --> 00:23:40,859 earth what in the tail are the relative 901 00:23:40,859 --> 00:23:42,499 earth what in the tail are the relative differences between the Highlands and 902 00:23:42,499 --> 00:23:42,509 differences between the Highlands and 903 00:23:42,509 --> 00:23:45,589 differences between the Highlands and the Maurya and the question one always 904 00:23:45,589 --> 00:23:45,599 the Maurya and the question one always 905 00:23:45,599 --> 00:23:50,059 the Maurya and the question one always returns to how was the moon related in 906 00:23:50,059 --> 00:23:50,069 returns to how was the moon related in 907 00:23:50,069 --> 00:23:52,579 returns to how was the moon related in essence the scientific investigation of 908 00:23:52,579 --> 00:23:52,589 essence the scientific investigation of 909 00:23:52,589 --> 00:23:54,109 essence the scientific investigation of the Moon is one of the great 910 00:23:54,109 --> 00:23:54,119 the Moon is one of the great 911 00:23:54,119 --> 00:23:59,769 the Moon is one of the great intellectual adventures of our time and 912 00:23:59,769 --> 00:23:59,779 intellectual adventures of our time and 913 00:23:59,779 --> 00:24:02,599 intellectual adventures of our time and a major chapter was written at the first 914 00:24:02,599 --> 00:24:02,609 a major chapter was written at the first 915 00:24:02,609 --> 00:24:04,909 a major chapter was written at the first conference for lunar science early in 916 00:24:04,909 --> 00:24:04,919 conference for lunar science early in 917 00:24:04,919 --> 00:24:08,749 conference for lunar science early in the year 1970 well we've come an awful 918 00:24:08,749 --> 00:24:08,759 the year 1970 well we've come an awful 919 00:24:08,759 --> 00:24:09,949 the year 1970 well we've come an awful long way and I think we've learned some 920 00:24:09,949 --> 00:24:09,959 long way and I think we've learned some 921 00:24:09,959 --> 00:24:11,119 long way and I think we've learned some very interesting things but there's 922 00:24:11,119 --> 00:24:11,129 very interesting things but there's 923 00:24:11,129 --> 00:24:14,180 very interesting things but there's still an enormous amount for us to learn 924 00:24:14,180 --> 00:24:14,190 still an enormous amount for us to learn 925 00:24:14,190 --> 00:24:15,319 still an enormous amount for us to learn about the moon before we fully 926 00:24:15,319 --> 00:24:15,329 about the moon before we fully 927 00:24:15,329 --> 00:24:17,869 about the moon before we fully understand it when we go to the 928 00:24:17,869 --> 00:24:17,879 understand it when we go to the 929 00:24:17,879 --> 00:24:19,969 understand it when we go to the highlands and we'll go to the patterns 930 00:24:19,969 --> 00:24:19,979 highlands and we'll go to the patterns 931 00:24:19,979 --> 00:24:22,430 highlands and we'll go to the patterns that they're going to be even more 932 00:24:22,430 --> 00:24:22,440 that they're going to be even more 933 00:24:22,440 --> 00:24:24,529 that they're going to be even more interesting from this point of view of 934 00:24:24,529 --> 00:24:24,539 interesting from this point of view of 935 00:24:24,539 --> 00:24:26,089 interesting from this point of view of the fundamental history of the solar 936 00:24:26,089 --> 00:24:26,099 the fundamental history of the solar 937 00:24:26,099 --> 00:24:28,430 the fundamental history of the solar system and then the parts that we have 938 00:24:28,430 --> 00:24:28,440 system and then the parts that we have 939 00:24:28,440 --> 00:24:31,129 system and then the parts that we have already visited it is only through the 940 00:24:31,129 --> 00:24:31,139 already visited it is only through the 941 00:24:31,139 --> 00:24:32,899 already visited it is only through the understanding of the interior of this 942 00:24:32,899 --> 00:24:32,909 understanding of the interior of this 943 00:24:32,909 --> 00:24:35,329 understanding of the interior of this planet that we begin to start to 944 00:24:35,329 --> 00:24:35,339 planet that we begin to start to 945 00:24:35,339 --> 00:24:37,430 planet that we begin to start to understand some of the processes that we 946 00:24:37,430 --> 00:24:37,440 understand some of the processes that we 947 00:24:37,440 --> 00:24:39,419 understand some of the processes that we see on the surface of the earth 948 00:24:39,419 --> 00:24:39,429 see on the surface of the earth 949 00:24:39,429 --> 00:24:43,049 see on the surface of the earth in fact we are taking a step in our 950 00:24:43,049 --> 00:24:43,059 in fact we are taking a step in our 951 00:24:43,059 --> 00:24:44,879 in fact we are taking a step in our understanding of the solar system and 952 00:24:44,879 --> 00:24:44,889 understanding of the solar system and 953 00:24:44,889 --> 00:24:47,729 understanding of the solar system and the earth that is comparable to the one 954 00:24:47,729 --> 00:24:47,739 the earth that is comparable to the one 955 00:24:47,739 --> 00:24:50,279 the earth that is comparable to the one taken by Galileo when he first pointed 956 00:24:50,279 --> 00:24:50,289 taken by Galileo when he first pointed 957 00:24:50,289 --> 00:25:25,090 taken by Galileo when he first pointed the telescope at the moon 958 00:25:25,090 --> 00:25:25,100 959 00:25:25,100 --> 00:25:27,160 you