The first human spaceflight was a triumph for technology and courage, but it came dangerously close to disaster. In this video, we revisit Yuri Gagarin’s 1961 mission aboard Vostok 1 – the flight that ...

Persistent rainfall and towering clouds sweeping across Florida forced back-to-back nighttime scrubs Monday and Tuesday as SpaceX crews unsuccessfully tried to launch a Falcon 9 rocket from Cape ...