NASA astronaut Bruce McCandless became the first person to go on a spacewalk without a tether. McCandless was wearing a type ...

The 'scariest photo ever taken in space' has an incredible story behind it, as it captured an astronaut completely cut off from everything else.

Bruce McCandless III is a space historian and his dad did the first untethered space walk back in 1984. He and Emily Carney have written a new book for anyone who wants to learn about the American ...