1 00:00:13,759 --> 00:00:16,080 So, as an astrobiologist, I'm really interested 2 00:00:16,080 --> 00:00:21,760 in understanding how life can exist on extreme environments here on Earth. 3 00:00:21,760 --> 00:00:25,920 Mars 2020, or Perseverance, is giving us an unique opportunity to 4 00:00:25,920 --> 00:00:29,560 actually look for signs of life on Mars. 5 00:00:29,560 --> 00:00:31,439 Mars missions have explored 6 00:00:31,439 --> 00:00:35,520 and indicated that the martian surface was quite wet 7 00:00:35,520 --> 00:00:39,680 than the cold and dry planet as it is today. 8 00:00:39,680 --> 00:00:43,680 These conditions lasted long enough to support life. 9 00:00:43,680 --> 00:00:47,440 So, as a microbiologist, I'm really interested in understanding 10 00:00:47,440 --> 00:00:52,380 how life would have evolved and sustained on Martian conditions. 11 00:00:52,500 --> 00:00:56,239 So, my research involves actually simulating conditions in the 12 00:00:56,239 --> 00:00:59,199 lab, or going to the extreme environments on Earth 13 00:00:59,199 --> 00:01:02,640 and finding out what kind of life can survive 14 00:01:02,640 --> 00:01:05,860 and how it can survive in these extreme conditions? 15 00:01:09,120 --> 00:01:12,240 The most exciting part about the Mars Perseverance rover 16 00:01:12,240 --> 00:01:18,080 is it will look for signs of ancient life forms, or the microbial life forms, on Mars. 17 00:01:18,620 --> 00:01:24,320 Since we are exploring these pristine samples on Mars, it's very important for us to 18 00:01:24,320 --> 00:01:27,840 keep the rover itself clean, so that we don't contaminate the 19 00:01:27,840 --> 00:01:30,500 Martian surface, and that's exactly what 20 00:01:30,620 --> 00:01:35,260 planetary protection researchers at nasa's jet propulsion laboratory are doing. 21 00:01:35,360 --> 00:01:39,759 I'm honored and privileged to be part of that group. So, my team is 22 00:01:39,759 --> 00:01:43,359 actually looking for DNA contents on the spacecraft. 23 00:01:43,359 --> 00:01:46,480 We call it as: genetic inventory.