Zero gravity, often depicted in science fiction and space documentaries, is a fascinating concept that sparks curiosity and wonder. Commonly misunderstood, zero gravity is not the absence of gravity ...

Even blowing bubbles in water is cooler in space. NASA astronaut Jack Fischer showed off a cool experiment aboard the International Space Station where he blew a large water bubble that covered his ...

NASA shows how space takes a toll on men and women differently. — -- With an upcoming mission to Mars, NASA is studying the ways that living in space affects both men and women. In a study ...

FRANCE (KTRK) -- The fastest man on Earth put his speed to the test in zero-gravity. And as it turns out, he's pretty quick in space too. Usain Bolt raced astronauts in an Airbus Zero-G plane above ...

Today, in honor of the start of the 2014 World Cup, ISS astronauts beamed down a message of congratulations to the team and shared with Earth-bound fans this delightful video of their zero-gravity ...

Can a social media-famous trainspotter become an astronaut? Erm, no. And it’s far from the best use of this hugely genuine, witty personality ...

Space sickness affects most astronauts during their first days in orbit. In zero gravity, the inner ear no longer senses up ...

A new study examines how time in space impacts astronauts’ brains, possibly having big implications for the future of space ...

Astronauts and cosmonauts compete in Olympic-style events aboard the International Space Station.

We've all had dreams of being up in space and experiencing the freedom of zero gravity, no longer bound by the strange force that keeps us stuck on the ground. But this experience is limited to the ...