The academic duo calculated the average volume of “space spunk,” approximately one teaspoon, as well as its density, one gram, and the average speed of ejaculation, which they found to be 45 ...

NASA has announced a new return date for astronauts Sunita Williams and Barry Wilmore, who have been on the International ...

The allegedly stranded astronauts traveled to space aboard a craft called the Boeing Starliner. That trip did not go as ...

Scientists are trying to find a solution to microgravity-induced vision changes to ensure future long-duration space ...

There are many obstacles to overcome before humans can set foot on Mars, including problems surrounding launch mass and ...

Astronauts Butch Wilmore and Suni Williams are conducting a spacewalk outside the International Space Station to remove ...

The four American astronauts aboard the ISS, including the Boeing Starliner crew, spoke to USA TODAY in an exclusive ...

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

NASA astronauts Suni Williams and Butch Wilmore completed a spacewalk Thursday while awaiting their delayed return to Earth.

Astronauts Suni Williams, Butch Wilmore, Nick Hague, and Don Pettit joined The Excerpt to share the perspective gained from ...

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

Starliner co-pilot Sunita Williams is now the world's most experienced female spacewalker, moving up to number four overall.