Four people — two NASA astronauts, one from the European Space Agency and a Russian cosmonaut — spent nearly eight months at the space station, conducting spacewalks, science experiments and research.

A trove of documents and interviews with people close to tech billionaire Elon Musk reveal a damning picture of his rise as one of the world's richest and most powerful men.

The crew of four — two NASA astronauts, one from Canada, and a Russian cosmonaut — heads to the International Space Station after liftoff from the Cape Canaveral Space Force Station in Florida.

SpaceX's mammoth rocket, Starship, reached orbit for the first time on Monday. The mission was shorter than expected, but SpaceX completed its objectives as it develops the world's largest rocket.

Starship is key to SpaceX's commercial success and NASA's plans to land humans on the moon. This is the 14th flight of the uncrewed Starship, but the first time it reached orbit.

NPR's A Martinez speaks with space security analyst Laura Grego of the Union of Concerned Scientists about the U.S. military's revelation that it has deployed weapons in space.

The remarkable revelation comes after previous warnings about countries such as Russia possibly weaponizing a global frontier long agreed in treaties to be used for only peaceful purposes.

NASA employees say they've lost vital equipment and staff needed to make sophisticated spacecraft amid the agency's abrupt relocations over the past several months.

NASA has been moving engineers out of their labs as a way to reduce waste. But the moves may be limiting the agency's ability to make spacecraft.

NPR's Ayesha Rascoe asks science reporter Joe Palca about the Nancy Grace Roman Space Telescope, which will have a field of view at least 100 times larger than Hubble Space Telescope.