6 years ago
Astronaut Chris Hadfield says the rockets from NASA, SpaceX, and Blue Origin won't take people to Mars
Chris Hadfield, most widely known for his zero-gravity guitar-playing, has seen an impressive amount of space travel. Between his first spaceflight in 1995, his second in 2001, and a third in 2013, Hadfield has flown inside NASA space shuttles, a Russian Soyuz spacecraft, and the International Space Station. Hadfield, who's now retired, shares his expertise about rockets, spaceships, spacewalking, and Mars exploration in a new web course on the online platform MasterClass.
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