"It's an elegant answer, really, because we thought it was a tiny galaxy full of many separate cold stars, but it's actually, effectively, one gigantic, very cold star." ...

This quiz invites you to chase comets through time and space, from ancient omens to modern scientific marvels.

The U.S. Federal Aviation Administration (FAA) has cleared Firefly Aerospace to resume launches of its Alpha rocket. The ...

Viking consisted of two twin orbiters and landers, with experimental chambers in the landers to conduct three biology ...

And speaking of the break of dawn, that happens nowadays at around 5:15 a.m. local daylight time. And that's the time for ...

The two telescopes operate synchronously: Izaña-2 fires laser pulses at a piece of space debris high overhead, and Izaña-1 ...

This unexpected color raises new questions about the alien chemistry of comets from beyond our solar system. On Sept. 7 2025, the skies darkened as Earth's shadow consumed the moon. Skywatchers in ...

Bungie's Halo swan song remains a fan-favorite installment, and its appeal after all these years is more than just nostalgia.

The 'equinox eclipse' will bring up to 86% coverage across New Zealand, Antarctica and parts of the South Pacific.

SpaceX will launch Northrop Grumman's new "Cygnus XL" cargo ship on its debut mission to the International Space Station (ISS ...