Orbital dynamics show that President Trump’s pledge to land astronauts on Mars couldn’t happen until 2029 at the earliest.

NASA's two stuck astronauts are taking their first spacewalk together, exiting the International Space Station almost eight ...

The founder of SpaceX said President Trump had asked his company to return two astronauts aboard the space station to Earth ...

Astronauts on board China's "heavenly palace" space station have demonstrated a new way of making rocket fuel products and ...

While Suni Williams and Butch Wilmore’s situation is unusual, their return trip will be pretty routine, as they were already ...

Elon Musk says Donald Trump has asked SpaceX to rescue two astronauts who have been in space for more than seven months — ...

NASA's asteroid samples unveil ancient water world remnants, hinting at extraterrestrial origins of life on Earth.

Despite the statement from President Trump, NASA had already scheduled the astronauts' return for late March or April.

An HTC headset designed to work in microgravity is offsetting the physical and psychological challenges of humans living off-world.

As one of the largest and most technologically advanced digital planetarium domes in the world, the Morrison Planetarium at ...

NASA explains some of the experiments being performed on the International Space Station into human health and performance.