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Explorer 1 was the first satellite launched by the United States when it was sent into space on January 31,…

STS-51J was the 21st NASA Space Shuttle mission and the first flight of Space Shuttle Atlantis.

STS-51I was the 20th mission of NASA's Space Shuttle program and the sixth flight of Space Shuttle Discovery. During the…

Artemis I is the first in a series of increasingly complex missions that will enable human exploration to the Moon…

STS-51F was the 19th flight of NASA's Space Shuttle program and the eighth flight of Space Shuttle Challenger. 

During each mission on the International Space Station, crew members take photographs of experiments, their daily lives, and the Earth…

STS-51-G was the 18th flight of NASA's Space Shuttle program, and the fifth flight of Space Shuttle Discovery.

STS-51D was the 16th flight of NASA's Space Shuttle program, and the fourth flight of Space Shuttle Discovery.

This was the first mission dedicated to the Department of Defense. The U.S. Air Force Inertial Upper Stage (IUS) booster…