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

In one of the most politicized and closely-followed space missions, Sunita Williams, an astronaut of Indian descent, spent ...

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

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

The Sunbird nuclear fusion rocket concept has the potential to more than halve the time to travel to Mars and cut travel time ...

T he concept of time travel has been a source of fascination for centuries, and over time, the genre has evolved to encompass ...

Bone and muscle deterioration, vision impairment — even changes in DNA. How does extended time in orbit impact the human body ...

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

NASA broke down how much stranded astronauts Butch Willmore and Suni Williams made during their extended orbit in space. Find ...

Tom Hanks is taking people on a virtual ride to the moon. At Space Center Houston, visitors can experience an immersive 270-degree multi-screen view of the Apollo missions.