1 00:00:04,430 --> 00:00:01,360 [Music] 2 00:00:06,430 --> 00:00:04,440 what's up for October a night for the 3 00:00:10,070 --> 00:00:06,440 whole world to observe the moon and 4 00:00:12,199 --> 00:00:10,080 hunting for ice giants international 5 00:00:14,509 --> 00:00:12,209 observe the moon night is October 5th 6 00:00:17,240 --> 00:00:14,519 it's an annual celebration of lunar 7 00:00:18,710 --> 00:00:17,250 observation and exploration events are 8 00:00:20,750 --> 00:00:18,720 scheduled in lots of places around the 9 00:00:22,310 --> 00:00:20,760 world so there may be one near you but 10 00:00:25,310 --> 00:00:22,320 all you really need to participate is to 11 00:00:27,110 --> 00:00:25,320 go out and look up the event is time to 12 00:00:29,360 --> 00:00:27,120 coincide with the first quarter moon 13 00:00:31,310 --> 00:00:29,370 this allows for some great observing 14 00:00:32,989 --> 00:00:31,320 along the lunar Terminator the line that 15 00:00:35,060 --> 00:00:32,999 divides the day side from the night side 16 00:00:37,459 --> 00:00:35,070 with even a small pair of binoculars you 17 00:00:39,470 --> 00:00:37,469 can see some great details as features 18 00:00:41,810 --> 00:00:39,480 like mountains and craters pop up into 19 00:00:44,389 --> 00:00:41,820 the light learn more and look for events 20 00:00:48,559 --> 00:00:44,399 in your area at moon nasa.gov slash 21 00:00:52,160 --> 00:00:48,569 observe October is a great time to try 22 00:00:53,840 --> 00:00:52,170 and capture an ice giant now these 23 00:00:56,180 --> 00:00:53,850 aren't mythical creatures they're 24 00:00:58,399 --> 00:00:56,190 planets the most distant of the major 25 00:01:01,099 --> 00:00:58,409 planets of our solar system Uranus and 26 00:01:03,919 --> 00:01:01,109 Neptune the four giant planets of our 27 00:01:06,950 --> 00:01:03,929 solar system are not created equal the 28 00:01:09,499 --> 00:01:06,960 gas giants Jupiter and Saturn are much 29 00:01:11,719 --> 00:01:09,509 bigger and way more massive while the 30 00:01:13,490 --> 00:01:11,729 ice giants are so named because they 31 00:01:16,160 --> 00:01:13,500 contain a much higher amount of 32 00:01:17,719 --> 00:01:16,170 materials that typically form ices in 33 00:01:19,730 --> 00:01:17,729 the frigid depths of the outer solar 34 00:01:21,830 --> 00:01:19,740 system in October 35 00:01:24,469 --> 00:01:21,840 both Uranus and Neptune are well placed 36 00:01:26,300 --> 00:01:24,479 in the late night sky in fact you can 37 00:01:27,889 --> 00:01:26,310 see all four giant planets in the same 38 00:01:30,620 --> 00:01:27,899 evening if you look for Jupiter and 39 00:01:32,510 --> 00:01:30,630 Saturn in the west after sunset and then 40 00:01:34,969 --> 00:01:32,520 come back a couple of hours later to 41 00:01:37,730 --> 00:01:34,979 spot Uranus and Neptune think of it as 42 00:01:40,039 --> 00:01:37,740 your own personal Voyager mission NASA's 43 00:01:42,319 --> 00:01:40,049 Voyager 2 is the only spacecraft to have 44 00:01:44,480 --> 00:01:42,329 visited the ice giants so far although 45 00:01:47,359 --> 00:01:44,490 scientists are eager to go back for a 46 00:01:49,639 --> 00:01:47,369 more detailed study the ice giants are 47 00:01:51,440 --> 00:01:49,649 quite faint so the best way to observe 48 00:01:53,450 --> 00:01:51,450 them is with a telescope and from 49 00:01:54,560 --> 00:01:53,460 personal experience it's much easier to 50 00:01:56,120 --> 00:01:54,570 find them if you have a 51 00:01:57,980 --> 00:01:56,130 computer-controlled mount that can 52 00:02:00,380 --> 00:01:57,990 automatically point the telescope for 53 00:02:02,450 --> 00:02:00,390 you if you don't have access to one find 54 00:02:07,279 --> 00:02:02,460 a local event with the night sky network 55 00:02:09,259 --> 00:02:07,289 at night sky JPL nasa.gov otherwise sky 56 00:02:11,600 --> 00:02:09,269 watching apps can help you star hop your 57 00:02:12,580 --> 00:02:11,610 way to these two incredibly distant 58 00:02:14,830 --> 00:02:12,590 planets 59 00:02:17,380 --> 00:02:14,840 now be advised because they're so far 60 00:02:19,030 --> 00:02:17,390 away each planet appears as just a point 61 00:02:22,750 --> 00:02:19,040 of light but with a modest telescope 62 00:02:24,580 --> 00:02:22,760 you'll see Uranus as a tiny disc you'd 63 00:02:27,280 --> 00:02:24,590 be forgiven for mistaking Neptune as a 64 00:02:30,009 --> 00:02:27,290 star it's the same size as Uranus but 65 00:02:32,350 --> 00:02:30,019 much farther away so it's fainter the 66 00:02:33,940 --> 00:02:32,360 ice giants are elusive but well worth 67 00:02:36,910 --> 00:02:33,950 the effort to say you've seen them with 68 00:02:42,490 --> 00:02:36,920 your own eyes here are the phases of the 69 00:02:44,470 --> 00:02:42,500 Moon for October you can catch up on all 70 00:02:47,380 --> 00:02:44,480 of NASA's current and future missions at 71 00:02:49,059 --> 00:02:47,390 nasa.gov I'm Preston dykes from NASA's