NASA astronauts Suni Williams and Butch Wilmore were selected for the first crewed test flight on Boeing's Starliner and were only supposed to stay at the International Space Station for 10 days, but when NASA discovered several helium leaks and propulsion system issues on the spacecraft,

Now, NASA has released tens major health risks facing the professionals as they continue their long-drawn-out odyssey. And it turns out the dangers of orbiting in space - especially for the staggering amount of time that they have - are far-reaching and affect almost every part of the human anatomy, as well as the brain and mental faculties.

Two astronauts are one step closer to returning to Earth. A SpaceX Dragon carrying a crew of four will dock at the International Space Station later tonight. The crew will replace Butch Wilmore and Suni Williams,