Astronomy contributor and lunar expert Robert Reeves looks back on a Texas-sized achievement in Moon exploration.

Astronauts Suni Williams and Butch Wilmore, who have been stranded at the International Space Station for nine months, closed ...

Astronauts Butch Wilmore and Suni Williams are finally returning from the International Space Station. But how did the ...

Under SpaceX CEO Elon Musk's vision, humans could then land on the Red Planet in 2029, though he admitted 2031 is "more ...

The NASA astronauts who crewed the Boeing Starliner could be on their way home sooner than expected due to weather conditions off the Florida coast.

Finally! A replacement crew has arrived at the ISS, and Suni Williams and Butch Wilmore will come home at last.

Crew 10 launch Friday begins final chapter for Starliner crew whose one-week mission stretched to nine months.

A SpaceX capsule carrying a fresh crew to the space station launched Friday, setting the stage for the Starliner astronauts ...

The Starliner saga is a step closer to its end with the launch of a SpaceX vehicle that will relieve the astronauts who flew on the Boeing spacecraft.

Sometimes sleep takes priority over cool celestial events. Luckily, you can catch a partial solar eclipse this month and a ...

You thought Saturn's 146 moons were impressive? Think again. The ringed planet's moon count has nearly doubled with the ...

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