Scientists have identified water as one of the most effective materials for blocking radiation. Water is dense and contains ...

Astronauts Sunita Williams and Barry Wilmore said that they did not feel stranded or abandoned by former President Joe Biden.

Don Pettit’s been snapping away in orbit again. This time, the NASA astronaut has captured a stunning image of the Milky Way from the International Space Station (ISS) . It also features Earth and ...

Those tiny colorful dinosaur toys that grow bigger underwater might hold the key to protecting astronauts as they journey through space.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. NASA’s Suni ...

NASA astronauts pushed back during an interview on President Trump’s claim last month that former President Biden and his administration abandoned them on the International Space Station (ISS).

NEEDHAM - Massachusetts native and astronaut Suni Williams said she's "trying to remember what it's like to walk" after being stuck in space for almost seven months. Williams on Monday was ...

NASA astronauts, speaking from space, debunked President Donald Trump’s claims that they had been left behind. Sunita Williams said she and fellow astronaut Butch Wilmore were not stranded on ...

She has been working in journalism for seven years. Joe Raedle/Getty Astronaut Suni Williams, who has been stuck in space since June, is opening up about some of the things she hasn't done in months.

A British astronaut has been cleared to become the first person with a physical disability to take part in a mission on the International Space Station, the European Space Agency (ESA) has said.

There it goes. OK. At the 3 hour and 50 minute mark of today's spacewalk, NASA astronauts Butch Wilmore and Sunny Williams successfully removed the radio frequency group off of the external ...