NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore surely didn't think they'd still be on the International ...

NASA astronaut Don Pettit has snapped a striking shot of the super-bright comet racing past our planet for the first time in ...

The two astronauts have a busy day ahead of them. Hague and Williams will "patch light leaks in the NICER X-ray telescope, ...

The secret behind how the International Space Station remains in orbit can be traced all the way back to the genius of Sir ...

Visible is the maximum time period the space station is visible before crossing back below the horizon. Appears is the ...

on board the International Space Station, and what they would have to face to a greater extent in future settlements on the moon or Mars. But it's also how we have to live on Earth if we are to ...

National Aeronautics and Space Administration's (NASA) two astronauts embarked on their first spacewalk of the year today, ...

An astronaut on the International Space Station captured mysterious blue spheres in the sky last year. NASA’s Earth Observatory shared the photo last year, as well, shortly after it was taken.

The International Space Station (ISS) orbits high above our heads, yet the pull of Earth's gravity never hauls the complex out of orbit and sends it plummeting through our atmosphere, where it ...