For a brief period in the 1980s, astronauts went untethered outside their space capsule, flying with jet packs. The photos ...

The unbelievable story behind the ‘most terrifying’ image NASA has ever taken of astronaut Bruce McCandless II who did the first-ever untethered spacewalk.

That loosened the tension a bit." McCandless's spacewalk marked the first untethered walk in space by a U.S. astronaut. He was also the first person on Earth to speak to Armstrong from the surface ...

Before Hubble could be launched, however, Sullivan, her crewmate Bruce McCandless ... March issue of Air & Space magazine You are the first American woman to walk in space. Did the history ...