1 00:00:11,990 --> 00:00:09,910 nasa's planetary lake lander is 2 00:00:13,830 --> 00:00:12,000 developing robotic systems capable of 3 00:00:15,430 --> 00:00:13,840 identifying the signs of life in our 4 00:00:17,910 --> 00:00:15,440 solar system 5 00:00:19,590 --> 00:00:17,920 microbial ecologist dr eric fleming 6 00:00:21,830 --> 00:00:19,600 studies how life adapts to harsh 7 00:00:23,429 --> 00:00:21,840 environments research useful in refining 8 00:00:26,230 --> 00:00:23,439 the techniques needed for future 9 00:00:28,710 --> 00:00:26,240 exploration so on this expedition we've 10 00:00:30,790 --> 00:00:28,720 deployed a sensor package 11 00:00:32,790 --> 00:00:30,800 comprised of a buoy that will float on 12 00:00:35,590 --> 00:00:32,800 the surface of the lake and then it has 13 00:00:39,830 --> 00:00:35,600 a collection of sensors that hangs below 14 00:00:41,750 --> 00:00:39,840 it so it allows us to monitor various 15 00:00:44,150 --> 00:00:41,760 parameters in the lake various aspects 16 00:00:45,190 --> 00:00:44,160 of lake chemistry or like things like 17 00:00:46,549 --> 00:00:45,200 temperature 18 00:00:49,430 --> 00:00:46,559 like turbidity 19 00:00:50,229 --> 00:00:49,440 to see changes that may occur in the 20 00:00:51,830 --> 00:00:50,239 lake 21 00:00:53,510 --> 00:00:51,840 over a period of time you're going to 22 00:00:55,830 --> 00:00:53,520 see patterns 23 00:00:58,389 --> 00:00:55,840 so say we go to titan titan contains an 24 00:01:00,229 --> 00:00:58,399 environment that's so alien to us that 25 00:01:03,029 --> 00:01:00,239 it's hard for us to imagine any form of 26 00:01:05,270 --> 00:01:03,039 life but the one critical thing that we 27 00:01:07,990 --> 00:01:05,280 know that all life does is it forms 28 00:01:10,630 --> 00:01:08,000 gradients it changes the environment 29 00:01:12,950 --> 00:01:10,640 that it's in and thus creates a gradient 30 00:01:13,990 --> 00:01:12,960 within it that's what life does so if we 31 00:01:15,990 --> 00:01:14,000 go to 32 00:01:17,830 --> 00:01:16,000 a place like titan that's probably the 33 00:01:19,190 --> 00:01:17,840 best thing that we can look for is to 34 00:01:22,710 --> 00:01:19,200 look for gradients within the 35 00:01:26,469 --> 00:01:24,630 for more information on these topics go