If there's one thing everybody knows about space, it's that there's no gravity once you leave the Earth's atmosphere. We all ...

Sunita 'Suni' Williams and Barry 'Butch' Wilmore are headed back to Earth after nine months on the ISS – but their greatest ...

One of the more surprising effects of microgravity is that astronauts grow taller in space — sometimes by as much as two inches. Without the constant downward pull of gravity, the spinal discs ...

As astronauts Butch Wilmore and Suni Williams acclimatize to Earth, the effects of being stranded in space for nine months, and their recovery, will give scientists a chance to improve preparations ...

Spending time in space and having an unrivalled view of planet Earth is an experience many of us dream of. However, the human body evolved to function in the gravity of Earth. So time in the ...

Black holes are points in space that are so dense they create deep gravity sinks. Beyond a certain region, not even light can escape the powerful tug of a black hole's gravity. And anything that ...

Developed in 1915, general relativity suggests that gravity arises because bodies with mass cause the fabric of spacetime (the four-dimensional unification of space and time) to warp. The greater ...