Canadian astronaut CHRIS HADFIELD flew to the Russian space station Mir in 1995 and to the International Space Station in 2001. He returned to the station in 2012 and served as its commander in 2013. The engaging short videos he shot during his last stay in space made him a social-media superstar: His rendition of David Bowie’s “Space Oddity” has been viewed more than 27 million times. His videos could inspire the next generation of astronauts, just as media coverage of the Apollo 11 moon landing in 1969, when…