Neil Melville would love to explain what weightlessness feels like, but he can’t. It’s a surprising admission from a man who’s experienced zero gravity more than 1,000 times in his role as a ...

Everything on Earth is subject to the force of gravity. The effects of that force vary greatly: Sometimes they are very minor and go unnoticed by man, while at other times their impact is fundamental.

The reason astronauts float about aboard spacecraft is because of weightlessness, not zero gravity. This is created because ...

After splashdown on October 25, the Crew-8 astronauts were taken to a hospital instead of Houston. One crewmate stayed overnight, sparking curiosity about the mysterious medical issue. Dominick ...

In 2007 the late Stephen Hawking fulfilled a lifelong dream; to experience 'weightlessness' outside of his wheelchair. With the help of entrepreneur Peter Diamandis (seen above), Stephen Hawking ...

BBC News joined him on board a parabolic flight, where he experienced weightlessness for the first time. One minute John McFall is lying on the floor of a plane. The next, he starts to float ...