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 January 26, 1978, the International Ultraviolet Explorer launched into orbit on a mission to study ultraviolet light emitted by stars and other bright objects in the universe. Because a lot of that ...

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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 ...

Axiom Mission 4, launching now on June 11, will send four astronauts to the ISS, including former NASA astronaut Peggy Whitson. The mission marks the return to space for astronauts representing India, ...

Explorer Scouts here in Scarborough will now be able to earn a Space Activity Badge for the first time in the section’s history.