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A feature from NASA’s Ames Research Center in Silicon Valley originally posted on August 31, 2017.
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Transcript Announcer: Firing chain is armed, sound suppression water system is armed. Ten remaining to start – Eight, seven, six, five four… [0:16] Narrator:Rockets use an explosive mix of chemicals to propel spacecraft and satellites off the surface of our planet. NASA’s Kennedy Space Center has many ways to prevent the launchpad from igniting, including using millions of gallons of water that both prevent flames from spreading and muffle the powerful sound waves of lift-off. (sound FX: rocket launch) One place you never want to see fire is inside a space vehicle. The International Space Station, or ISS, has…
When we search for life beyond Earth, we have to figure out what we could measure that would tell us that life was, or is, there. And the starting place for that search must be Earth itself, the only place where we know for sure that life has lived. Every rock tells a story, and so does each fatty acid called a lipid. Your cholesterol, which is part lipid and part protein, could last for billions of years, and contains the information that you are a mammal. Could we find lipids beyond Earth? NASA astrobiologist Lindsay Hays explores this…