Globular clusters are often described as ancient, tightly bound fossils of the early Milky Way. It has been believed that ...

The X-ray Imaging and Spectroscopy Mission (XRISM) spacecraft has delivered an "unprecedented tally of elemental sulfur ...

Witnessing the Milky Way is a profound experience. This article highlights ten premier global locations for stargazing. From ...

On Jan. 15, 2025, the Gaia spacecraft took its last image. Then the craft ran a final round of engineering tests, fired its ...

Planetary alignments, a total lunar eclipse, and meteor showers are highlights to look for in the coming year.

Their analysis showed that the planet lies about 3,000 parsecs, or just under 10,000 light-years, from Earth. Its mass is ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

It used to be said that you could test your eyesight by counting the number of stars visible to the unaided eye. The best nights to try this are around January 19 when the Moon is new ...

In the run up to Christmas, carols fill the air. Many have an astronomical twist, singing of the "Christmas Star" from the ...

Scientists discovered 128 new moons orbiting Saturn, bringing the planet’s total to 274. Many of these moons are “only a few ...

Although we already know dozens of exoplanets without their own star, their masses could only be estimated. Now a precise ...