1 00:00:20,460 --> 00:00:17,220 just because we landed on Mars doesn't 2 00:00:23,310 --> 00:00:20,470 mean that the challenges are now over in 3 00:00:27,540 --> 00:00:23,320 fact there are a lot of things that have 4 00:00:29,040 --> 00:00:27,550 to go just right on that first day well 5 00:00:32,670 --> 00:00:29,050 I think the biggest challenge we face is 6 00:00:34,620 --> 00:00:32,680 the surface of Mars nobody knows what 7 00:00:36,810 --> 00:00:34,630 the surface of this arctic region is 8 00:00:38,690 --> 00:00:36,820 going to look like at the level that 9 00:00:41,700 --> 00:00:38,700 we're going to be interacting with it 10 00:00:43,979 --> 00:00:41,710 right after landing we've got to make 11 00:00:46,950 --> 00:00:43,989 sure that we get our solar panels 12 00:00:48,450 --> 00:00:46,960 deployed there's two of them one meat on 13 00:00:50,760 --> 00:00:48,460 each have the lander and they open up 14 00:00:53,310 --> 00:00:50,770 like a Chinese fan that's probably the 15 00:00:55,290 --> 00:00:53,320 most critical thing on that day because 16 00:00:56,970 --> 00:00:55,300 if we don't have solar rays we don't 17 00:01:00,980 --> 00:00:56,980 have power we don't have power we don't 18 00:01:04,799 --> 00:01:00,990 have a mission also critical are 19 00:01:07,530 --> 00:01:04,809 deploying the camera and the robotic arm 20 00:01:09,450 --> 00:01:07,540 without the camera there's no way we can 21 00:01:11,490 --> 00:01:09,460 have a quick understanding of what the 22 00:01:14,249 --> 00:01:11,500 environment around us looks like and 23 00:01:17,249 --> 00:01:14,259 without the robotic arm we can't start 24 00:01:20,489 --> 00:01:17,259 digging for our science samples Phoenix 25 00:01:23,520 --> 00:01:20,499 is looking for habitats on Mars places 26 00:01:25,649 --> 00:01:23,530 where life could exist or could have 27 00:01:28,289 --> 00:01:25,659 existed in the past we know that life 28 00:01:30,959 --> 00:01:28,299 needs three things to exist it needs an 29 00:01:33,809 --> 00:01:30,969 energy source like sunlight it needs 30 00:01:36,749 --> 00:01:33,819 water and it needs organic molecules 31 00:01:39,330 --> 00:01:36,759 that's molecules that contain carbon 32 00:01:41,099 --> 00:01:39,340 oxygen hydrogen we believe that if 33 00:01:44,639 --> 00:01:41,109 they're there they're likely going to be 34 00:01:47,849 --> 00:01:44,649 beneath the ground and likely to be in 35 00:01:51,749 --> 00:01:47,859 ice the ice is not at the surface it's 36 00:01:54,660 --> 00:01:51,759 not this shiny ice skating rink set of 37 00:01:57,539 --> 00:01:54,670 ice it's going to be a dirty mess of 38 00:01:59,910 --> 00:01:57,549 soil and ice mixed together kind of like 39 00:02:01,709 --> 00:01:59,920 a Alaskan permafrost we expect to be 40 00:02:02,999 --> 00:02:01,719 able to dig down as deep as about a half 41 00:02:06,109 --> 00:02:03,009 a meter or about a foot and a half 42 00:02:09,600 --> 00:02:06,119 there's going to be a real gradient and 43 00:02:11,850 --> 00:02:09,610 exploration from surface to ice that has 44 00:02:14,820 --> 00:02:11,860 never been done before that ice is going 45 00:02:17,820 --> 00:02:14,830 to be as hard as concrete so getting 46 00:02:19,380 --> 00:02:17,830 down to that ice and getting a sample is 47 00:02:22,680 --> 00:02:19,390 going to take some time 48 00:02:24,960 --> 00:02:22,690 something we don't have a lot of time is 49 00:02:27,090 --> 00:02:24,970 of the essence when we get to Mars we 50 00:02:29,400 --> 00:02:27,100 only have a few months to do all of the 51 00:02:31,770 --> 00:02:29,410 science we wanted to a point will come 52 00:02:35,070 --> 00:02:31,780 in the fall when the Sun will 53 00:02:37,590 --> 00:02:35,080 permanently set and there won't be 54 00:02:40,380 --> 00:02:37,600 enough solar energy hitting the solar 55 00:02:42,780 --> 00:02:40,390 panels to continue to power the lander 56 00:02:47,550 --> 00:02:42,790 we are in fact working against a clock 57 00:02:52,440 --> 00:02:47,560 as winter advances the north polar ice 58 00:02:54,750 --> 00:02:52,450 cap is growing until it gets closer and 59 00:02:57,660 --> 00:02:54,760 closer to our landing site and 60 00:03:01,620 --> 00:02:57,670 eventually our lander will be completely 61 00:03:04,170 --> 00:03:01,630 in tune tonight so we face a lot of 62 00:03:06,600 --> 00:03:04,180 challenges on the surface of Mars but 63 00:03:08,729 --> 00:03:06,610 the dedication of the team is there and 64 00:03:11,430 --> 00:03:08,739 it's worth it because the discoveries 65 00:03:13,770 --> 00:03:11,440 are going to be so amazing for a 66 00:03:16,320 --> 00:03:13,780 scientist this is the beginning of our 67 00:03:18,900 --> 00:03:16,330 chance to really try and understand what 68 00:03:20,610 --> 00:03:18,910 the truth the scientific truths of the 69 00:03:23,130 --> 00:03:20,620 Arctic region of Mars are all about 70 00:03:25,080 --> 00:03:23,140 we've never dug into ice have not had 71 00:03:26,580 --> 00:03:25,090 incidents like this on Mars before that 72 00:03:28,340 --> 00:03:26,590 can detect the organics like we like 73 00:03:32,300 --> 00:03:28,350 these instruments can what's more 74 00:03:35,520 --> 00:03:32,310 thrilling as a nation as a world then 75 00:03:38,130 --> 00:03:35,530 finding another world that perhaps also 76 00:03:40,199 --> 00:03:38,140 contains some form of life our mission 77 00:03:42,930 --> 00:03:40,209 is just a stepping stone in that 78 00:03:44,340 --> 00:03:42,940 ultimate search but it's an exciting 79 00:03:47,400 --> 00:03:44,350 part of the search because we're going 80 00:03:49,890 --> 00:03:47,410 from finding water to finding a