Two NASA astronauts who flew up to the International Space Station in a Boeing Starliner capsule for a round trip that was supposed to last just over a week will be stuck in space for closer to a ...

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

Using Newton's laws of motion and devices made from springs, astronauts on the International Space Station can measure their body mass. Microgravity in low Earth orbit is a demanding environment ...

Don Pettit has a long history of inventing new tools for use in space. Astronauts are many things. They're often scientists, engineers, or pilots. And in the case of NASA astronaut Don Pettit ...

as she and fellow astronaut Butch Wilmore have been stuck at the International Space Station since June — with a new return date set for late March. “They look like they are in very bad shape ...

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NASA astronauts Butch Wilmore and Sunita Williams will spend at least nine consecutive months aboard the International Space Station after their Boeing Starliner spacecraft returned to Earth empty.

Two NASA astronauts who flew up to the International Space Station in a Boeing Starliner capsule for a round trip that was supposed to last just over a week will be stuck in space for closer to a ...

The NASA astronauts had originally set off an eight-day mission to the International Space Station in June, only to have a leak in their Boeing Starliner aircraft—related to its propulsion ...

Astronauts Don Pettit and Barry “Butch” Wilmore aboard the space station. Credit: NASA Johnson Have you ever wanted to ask an astronaut about what it’s really like to live and work in space? Well, now ...