WEBVTT FILE 1 00:00:00.000 --> 00:00:01.368 Chemistry. 2 00:00:01.835 --> 00:00:02.869 Biology. 3 00:00:03.003 --> 00:00:03.803 Physics. 4 00:00:04.104 --> 00:00:08.375 A NASA mission has gathered experts in all three disciplines...and more.... 5 00:00:08.375 --> 00:00:11.378 for an ambitious project to study Earth's climate. 6 00:00:11.378 --> 00:00:14.180 It's called the North Atlantic Aerosols and 7 00:00:14.180 --> 00:00:15.982 Marine Ecosystem Study. 8 00:00:16.182 --> 00:00:17.917 NASA calls it NAAMES. 9 00:00:18.084 --> 00:00:20.754 It's a complex mission with a million moving parts, 10 00:00:20.754 --> 00:00:22.522 but there are three big ones to note. 11 00:00:23.056 --> 00:00:27.761 First, there's the research vessel Atlantis, a laboratory at sea. 12 00:00:28.561 --> 00:00:33.066 Then there's NASA's own C130 Hercules, a laboratory in the sky. 13 00:00:33.633 --> 00:00:38.605 And one more...but we'll get to that. It's big hardware for sure, 14 00:00:38.605 --> 00:00:42.342 but the stars of the show, besides a crackerjack team of scientists, 15 00:00:42.709 --> 00:00:45.311 are these guys: ...phytoplankton. 16 00:00:46.012 --> 00:00:49.382 In the north Atlantic there are trillions, and springtime is when 17 00:00:49.382 --> 00:00:50.683 they bloom. 18 00:00:50.683 --> 00:00:54.954 Phytoplankton produce a gas called dimethymsulfide, or DMS, 19 00:00:54.954 --> 00:00:59.159 and as that gas passes into the atmosphere, it rapidly breaks down. 20 00:00:59.159 --> 00:01:04.130 The resulting sulfur compounds become aerosols, microscopic particles 21 00:01:04.130 --> 00:01:07.367 in essence, and water condenses around them. 22 00:01:07.734 --> 00:01:09.769 And you know what you get when countless water droplets 23 00:01:09.769 --> 00:01:13.373 condense in the atmosphere? Clouds. 24 00:01:14.074 --> 00:01:18.445 There's a startling connection: phytoplankton affect cloud formation! 25 00:01:19.512 --> 00:01:23.650 But phytoplankton growth depends on available carbon, and the warmer the 26 00:01:23.650 --> 00:01:27.187 temperatures of the ocean, the less carbon that water can hold. 27 00:01:27.720 --> 00:01:31.024 Less carbon could restrict phytoplankton growth, which 28 00:01:31.024 --> 00:01:33.960 in turn could affect global cloud cover, 29 00:01:33.960 --> 00:01:35.061 among other things. 30 00:01:35.895 --> 00:01:41.167 When one part of the system changes, everything shifts, and that's why NASA 31 00:01:41.167 --> 00:01:44.537 has teams out in the field, studying how that system 32 00:01:44.537 --> 00:01:46.506 works from all sorts of angles. 33 00:01:47.674 --> 00:01:50.009 So what's the mission's third big moving part? 34 00:01:50.009 --> 00:01:55.081 That would be The Agency's fleet of spacecraft, currently in orbit 35 00:01:55.081 --> 00:01:59.552 gathering global information 24-7-365. 36 00:01:59.552 --> 00:02:03.189 Lessons learned from NAAMES and related research will help 37 00:02:03.189 --> 00:02:05.458 experts develop the next generation 38 00:02:05.458 --> 00:02:08.995 of spacecraft, some of which are already on the drawing board. 39 00:02:09.762 --> 00:02:12.632 Most people know NASA for its interplanetary adventures. 40 00:02:12.632 --> 00:02:17.103 But that high-flying know-how also enables it to conduct some of the 41 00:02:17.103 --> 00:02:21.141 most important scientific research right here, on the planet where 42 00:02:21.141 --> 00:02:22.876 you're watching this video. 43 00:02:22.876 --> 00:02:29.015 ♪ music ♪