NASA launched the first-ever active repeater communications satellite.
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US Air Force divers located the Challenger Space Shuttle's crew cabin at the bottom of the ocean.
The crew of Soviet spacecraft 'Soyuz 11' dies after the loss of air supply.
An oxygen tank explodes on Apollo 13, leaving the spacecraft crippled.
NASA launched the Echo 2 experimental communications satellite.
NASA's Explorer 9 satellite launched from the Wallops Flight Facility in eastern Virginia.
