From stray pens to birds, Mike Leinbach, retired launch director, explains why shuttle launches sometimes got scrubbed.

NASA astronauts Jack Hathaway and Jessica Meir, speaking from aboard the International Space Station, paid tribute to the ...

On September 17, 1976, NASA revealed the Enterprise—its first space shuttle, named after Star Trek's starship. Discover how this pioneering craft shaped American spaceflight history.

In U.S. human spaceflight program, the final launch decision rests with one person: the launch director. NASA's Mike Leinbach on making hardest call.

The space shuttle is the “world’s first reusable spacecraft,” launching like a rocket, orbiting like a spacecraft and landing like a plane. Space shuttles could carry satellites, space probes, and ...