Astrophysicist Paul Sutter talks about the science behind "Three Body Problem," "Interstellar," and "Avengers: Infinity War." ...

NASA astronauts are returning to Earth after nine months in space. Experts have said a prolonged period in space can come ...

Floating around at the edge of the Solar System are leftovers from its formation. This is the Kuiper Belt, which is composed ...

Astronauts Barry “Butch” Wilmore and Suni Williams are back on Earth after nearly nine months in space and readjusting to ...

NASA has revealed the SpaceX Dragon spacecraft will depart the ISS at 1.05am EST (5.05am GMT) on Tuesday (March 18), with ...

US astronauts Butch Wilmore and Suni Williams are finally coming home — here are some of the health issues they may ...

Nine months in space can permanently alter the body, leaving astronauts with possible long-term health effects.

This strange object near the solar system's edge may be a rare example of the 3-body problem in our own cosmic neighborhood.

NASA astronauts Sunita Williams and Barry Wilmore may face certain effects on their health upon returning to Earth after nine ...

Sunita Williams spent a total of 608 days in orbit but the record for spending most time in space is held by another NASA ...