The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

Astronomers are increasingly finding planets that do not simply circle their stars in neat, clockwork ellipses but instead trace out paths that look more like intricate choreography. The latest ...

With major eclipses, brilliant supermoons, and lineups of five or more planets, 2026 offers something awe-inspiring in every season. Here’s what to watch for.

For centuries, Europeans thought that eternal daylight saturated the cosmos. The shift to a dark universe has had a profound ...

NASA has completed assembly of the Nancy Grace Roman Space Telescope, preparing for final testing and launch by May 2027 to ...

Welcome to the final winter edition of the Icebox! After three years of keeping it cool with lots of video games, anime and just a hint of Venom, the Icebox series is nearing the end of its time here ...

Astronomers have captured images of two stellar explosions—known as novae—within days of their eruption and in unprecedented ...

The fifth day of the 18th annual Space Telescope Advent Calendar features a close view of a distant and colorful spiral ...

The twin telescopes of the Gemini Observatory mark 25 years of discovery as students name distant nebula Ua ʻŌhiʻa Lan. The ...

NASA's next big eye on the cosmos is now fully assembled. On Nov. 25, technicians joined the inner and outer portions of the ...

Dan Falk: Space junk broadly refers to stuff that’s in space that was put there by humans, and that is no longer doing what ...

The artificial-intelligence boom has driven up demand for data centers, sending companies into an expensive scramble for more resources that has sparked resistance in locales housing the facilities.