1 00:00:08,990 --> 00:00:05,570 can opportunity weather a gigantic dust 2 00:00:11,419 --> 00:00:09,000 storm on Mars mega storms roar across 3 00:00:15,230 --> 00:00:11,429 the Red Planet every five to six years 4 00:00:19,670 --> 00:00:15,240 Mariner 9 caught one in 1971 as did 5 00:00:20,029 --> 00:00:19,680 Viking five years later dust terms on 6 00:00:21,650 --> 00:00:20,039 Mars 7 00:00:23,540 --> 00:00:21,660 aren't the same as desc terms on earth 8 00:00:25,400 --> 00:00:23,550 if you're at the rover for instance 9 00:00:27,560 --> 00:00:25,410 sitting on the surface and you're 10 00:00:30,380 --> 00:00:27,570 looking up at the sky you're not going 11 00:00:32,810 --> 00:00:30,390 to see the sun's disk even during the 12 00:00:35,840 --> 00:00:32,820 day because the cloud the dust haze is 13 00:00:38,420 --> 00:00:35,850 thick enough that the sunlight has been 14 00:00:40,459 --> 00:00:38,430 either absorbed or scattered opportunity 15 00:00:43,400 --> 00:00:40,469 snapped these pictures over several 16 00:00:46,340 --> 00:00:43,410 Martian days recently darkened skies 17 00:00:48,740 --> 00:00:46,350 indicate the amount of dust blocking the 18 00:00:51,049 --> 00:00:48,750 sun's energy there is a possibility that 19 00:00:53,510 --> 00:00:51,059 if the dust haze continues to thicken 20 00:00:55,459 --> 00:00:53,520 and the solar power is reduced at the 21 00:00:57,650 --> 00:00:55,469 surface that we could lose the 22 00:00:59,420 --> 00:00:57,660 opportunity Rover there's a certain 23 00:01:02,389 --> 00:00:59,430 point where it doesn't have enough 24 00:01:05,359 --> 00:01:02,399 energy to maintain all of its systems 25 00:01:08,120 --> 00:01:05,369 and once they shut down we won't be able 26 00:01:10,789 --> 00:01:08,130 to revive them we're not at that point 27 00:01:12,440 --> 00:01:10,799 yet and we have some margin to that but 28 00:01:20,179 --> 00:01:12,450 we're close enough that we're a little 29 00:01:22,219 --> 00:01:20,189 worried about the rover team at NASA's 30 00:01:24,740 --> 00:01:22,229 Jet Propulsion Laboratory sent a command 31 00:01:27,399 --> 00:01:24,750 asking opportunity to skip phoning home 32 00:01:29,710 --> 00:01:27,409 for a while to conserve energy 33 00:01:31,630 --> 00:01:29,720 Opportunity is hunkered down 34 00:01:33,370 --> 00:01:31,640 and so it's only doing the various such 35 00:01:36,580 --> 00:01:33,380 of things that are needed to keep the 36 00:01:37,810 --> 00:01:36,590 spacecraft to Mars winds can give it and 37 00:01:40,300 --> 00:01:37,820 taketh away 38 00:01:42,730 --> 00:01:40,310 Mars dust devils gave the rover's new 39 00:01:45,940 --> 00:01:42,740 leases on life by blowing the dust off 40 00:01:47,380 --> 00:01:45,950 their solar panels this windstorm is a 41 00:01:49,690 --> 00:01:47,390 different story 42 00:01:51,190 --> 00:01:49,700 dust storms on Mars aren't local the way 43 00:01:52,750 --> 00:01:51,200 they are on earth these things could 44 00:01:55,210 --> 00:01:52,760 take over the whole planet they can 45 00:01:56,530 --> 00:01:55,220 perhaps carry pulled the pole all the 46 00:02:00,580 --> 00:01:56,540 way wrapped around the planet the 47 00:02:02,200 --> 00:02:00,590 Odyssey spacecraft can see both were 48 00:02:04,720 --> 00:02:02,210 dust is in the atmosphere and our 49 00:02:06,580 --> 00:02:04,730 constancy of the temperature effect on 50 00:02:08,950 --> 00:02:06,590 the Mars Reconnaissance work there gets 51 00:02:12,250 --> 00:02:08,960 an almost complete global view of the 52 00:02:22,830 --> 00:02:12,260 planet scientists hope this Martian dust 53 00:02:27,130 --> 00:02:25,270 opportunity's twin spirit is on the 54 00:02:29,619 --> 00:02:27,140 other side of Mars where the dust storm 55 00:02:32,410 --> 00:02:29,629 is less severe the team is still 56 00:02:34,600 --> 00:02:32,420 limiting its activity to conserve power 57 00:02:36,910 --> 00:02:34,610 in the mean time scientists and 58 00:02:40,420 --> 00:02:36,920 engineers hope the dust settles soon 59 00:02:42,400 --> 00:02:40,430 before opportunity's power runs out the 60 00:02:44,259 --> 00:02:42,410 things don't get worse we expect that 61 00:02:46,839 --> 00:02:44,269 we'll be in a situation of recovering 62 00:02:50,289 --> 00:02:46,849 and being able to go on but even if we 63 00:02:52,690 --> 00:02:50,299 don't okay instead of 90 days we've 64 00:02:54,670 --> 00:02:52,700 gotten over a thousand days operation on