NASA astronauts Suni Williams and Butch Wilmore at a press conference from the International Space Station on Sept. 13. (NASA via AP) ...

Mark Kelly, D-Ariz., traded jabs on social media Monday, after the billionaire space entrepreneur called the former NASA astronaut a "traitor" for his recent trip to Ukraine. Kelly, Arizona's ...

A pair of astronauts stuck aboard the International Space Station (ISS) for over nine months may have to wait a little longer to return home after the launch of their replacements was postponed.

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

A replacement crew is heading to the ISS, and Suni Williams and Butch Wilmore will come home at last. But first, another delay. CNET editor Gael Fashingbauer Cooper, a journalist and pop-culture ...

SpaceX delays mission meant to retrieve stranded astronauts after launch pad problem The new crew needs to get to the International Space Station before Butch Wilmore and Suni Williams can head ...

36,706 people played the daily Crossword recently. Can you solve it faster than others?36,706 people played the daily Crossword recently. Can you solve it faster than others?

“One of the exciting speakers kicking off the conference is Katherine Bennell-Pegg, Australia’s first female astronaut and the director of space technology at the Australian Space Agency ...