What can a piece of debris from another star tell astronomers about planets they may never see directly? The answer has changed dramatically since the first confirmed object from another star crossed ...

Astronomers have witnessed evidence of an extremely violent collision between planets, and it resembles the event in Earth's history that created the moon.

Webb has captured the haunting “Exposed Cranium” nebula—an otherworldly cloud shaped by a dying star that looks remarkably like a brain inside a skull.

An old NASA science satellite plunged uncontrolled from orbit and reentered over the Pacific on Wednesday. The U.S. Space Force said the Van Allen Probe A came in west of the Galapagos Islands.

All things that go up must eventually come down. NASA says that its Van Allen Probe A satellite has fallen precipitously back to Earth after a 14-year journey through space. The probe reentered the ...

The comet formed in a cold and distant part of the early Milky Way up to 12 billion years ago, putting it just under 2 billion years the age of the universe.

Our sun and a host of "solar twins" may have migrated away from the core of the Milky Way galaxy together long ago, potentially making the solar system more hospitable to life.

With the first images from the spacecraft now in hand, the team behind NASA's Star-Planet Activity Research CubeSat, or SPARCS, is ready to begin charting the energetic lives of the galaxy's most ...

Astronomers have caught what may be a rare cosmic catastrophe unfolding 11,000 light-years away. A seemingly ordinary sun-like star suddenly began flickering wildly, puzzling scientists until they ...

Pablo Martinez Mirave does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...