For the first time in more than 50 years, humans are preparing to travel beyond low-Earth orbit and return to the Moon.

In the early morning hours of April 12, 1981, NASA launched its first Space Transportation System, or space shuttle, mission, carrying astronauts John Young and Robert Crippen into orbit.

After almost 40 years circling Earth, a NASA satellite has plunged harmlessly through the atmosphere.

Divers discover 20-foot segment of the 1986 Space Shuttle Challenger in the waters off the coast of Florida during the filming of the new series “The Bermuda Triangle: Into Cursed Waters"