Brendan Byrne
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Since touching down in Jezero Crater, NASA's Perseverance rover has already cached 6 samples that could one day be brought back to Earth. Astrobiologists hope they hold signs of past microbial life. -
When Doug Hurley launched aboard Atlantis on July 8, 2011, the future of human spaceflight from U.S. soil was uncertain. Nearly a decade later, the astronaut is piloting SpaceX's new Crew Dragon.
