Nasa Space Shuttle Challenger disaster: Remembering the tragedy on its 30th anniversary

On the morning of 28 January 1986, the Space Shuttle Challenger exploded just 73 seconds into its flight, leading to the deaths of its seven crew members. Travelling at nearly 2,000mph at a height of ten miles, the Space Challenger was enveloped in a red, orange and white fireball as thousands of tons of liquid hydrogen and oxygen fuel exploded. According to reports, a ruptured O-ring (mechanical gasket in the shape of a circle) located in the right solid rocket booster caused the explosion afte