NASA recently paid tribute to the Challenger crew and other fallen astronauts during its annual Day of Remembrance.
Today marks 39 years since the tragic Space Shuttle Challenger disaster, honoring the brave pioneers who lost their lives in space.
The space agency honored the fallen Challenger crew, as well as other astronauts of Apollo 1 and space shuttle Columbia, during its annual Day of Remembrance ceremony on Jan. 23. "Today ...
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