On January 26, 1978, the International Ultraviolet Explorer launched into orbit on a mission to study ultraviolet light ...
Add Yahoo as a preferred source to see more of our stories on Google. On Aug. 25, 1997, NASA launched the Advanced Composition Explorer, or ACE satellite to study energetic particles travelling ...
On Dec. 16, 1962, NASA launched the Explorer 16 spacecraft to study micrometeoroids near Earth. [‘On This Day in Space’ Video Series on Space.com] The mission would determine how likely it would be ...
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