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An astronaut's guide to life on Earth
Col. Chris Hadfield, YouTube's most famous astronaut and author of “An Astronaut’s Guide to Life on Earth: What Going to Space Taught Me About Ingenuity, Determination, and Being Prepared for Anything,” came down to Earth to join the Cyclists at the table.
Space on msnbc
SCIENCE! Tourists could be in space by the end of this year00:38
Science! NASA launches new mission to find planets00:47
Bolden: Mars by the 2030s ‘well within our grasp’04:57
SCIENCE: Astronauts repair International Space Station00:23
No room for conflicts in space01:39
Mae Jemison, the first African American woman to go to space is #OneGreatWoman05:52