Nasa,including the crew of the International Space Station, marked the 30th anniversary of the space shuttle Challenger explosion on Thursday by paying tribute to those killed in the catastrophe. Six astronauts and a teacher lost their lives on 28 January, and 1986,when a booster engine failed just 73 seconds after assume-off, causing the orbiter to explode as millions around the world watched the event live on TVContinue reading...
Source: theguardian.com