For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to ...

In a glimpse of the early universe, astronomers have observed a galaxy as it appeared just 800 million years after the Big ...

An immensely powerful flash detected earlier this year was created by a massive star exploding when the universe was just ...

FROSTI is a new adaptive optics system that precisely corrects distortions in LIGO’s mirrors caused by extreme laser power.

If you look across space with a telescope, you'll see countless galaxies, most of which host large central black holes, ...

A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, ...

Molecules containing noble gases shouldn’t exist. By definition, these chemical elements — helium, neon, argon, krypton, xenon and radon — are the party poopers of the periodic table, huddling in the ...

The universe’s expansion might not be accelerating but slowing down, a new study suggests. If confirmed, the finding would upend decades of established astronomical assumptions and rewrite our ...

Understanding how the universe transitioned from darkness to light with the formation of the first stars and galaxies is a key turning point in the universe’s development, known as the Cosmic Dawn.

A virtual event, "Astronomy Unlocked: How to Choose Your Best Telescope," is scheduled for November 20, 2025, at 9:00 am EST, designed to provide a comprehensive guide to selecting astronomical ...

Depending on how you look at it, the universe might not have an "end," after all. This article was originally published at The Conversation. The publication contributed the article to Space.com's ...