Cosmic speed limits can be a major inconvenience but they've rarely stopped science fiction in its tracks.

President Trump said he would personally cover the cost of per diem pay for two astronauts stranded in space for nine months, ...

New data from the Atacama Cosmology Telescope has allowed astronomers to travel back in time to the dawn of the universe.

The US astronauts stranded on the International Space Station are home at last — more than nine months after their days-long ...

Black holes, vast regions of space with gravity so strong that even ... offers a potential pathway to unlocking the mysteries of time travel." ...

Time travel is the concept of movement between certain points in time, analogous to movement between different points in space by an object or a person, typically with the use of a hypothetical device ...

Ron Mallett, a physicist and professor emeritus at the University of Connecticut, was just 10 years old when he lost his ...

The Dragon capsule carrying four astronauts touched down safely off the coast of Florida shortly before 6pm Tuesday ...

Suni Williams and Butch Wilmore do not get overtime for their unexpectedly long stay on the International Space Station, ...

After nine months in space, NASA astronauts Butch Wilmore and Suni Williams finally returned to Earth on Tuesday, March 18 — ...

Spending nearly 10 months stranded in space might sound like a nightmare for the body—loss of muscle mass, weakened bones, ...