The Federal Aviation Administration is demanding an accident investigation into the out-of-control Starship flight by SpaceX.

Golf balls, a word from the queen, and an X-rated drawing by Andy Warhol are just some of the items left behind by astronauts ...

In the world of black holes, there are generally three size categories: stellar-mass black holes (about five to 50 times the ...

How much further can Voyager 1 travel before we lose contact or it runs out of energy? What if we turned the cameras on now?

In 2021, scientists at Arizona State University, the California Institute of Technology, and the University of California, ...

A series of studies have cast doubt on the sensational claim that "the strongest evidence yet" was found that life exists anywhere else besides Earth.

A planned SpaceX launch of a GPS satellite marks the latest national security mission taken away from United Launch Alliance ...

Taylor Jenkins Reid recalls a moment writing her new novel, “Atmosphere: A Love Story,” set against NASA’s robust 1980s ...

The Mars Reconnaissance Orbiter (MRO), launched by NASA in 2005, is orbiting Mars tasked with studying its atmosphere, ...

Fifteen thousand light years away something is semaphoring into space. And scientists are eager to solve its riddle.

NASA and the European Space Agency launched an astronomical revolution. When the Space Shuttle Discovery roared into the sky ...

I'm incredibly excited, as part of the Ars Live series, to host a conversation with some of the very best space reporters in ...