Scientists say Abell 3667 formed from two smaller clusters colliding a billion years ago, with each cluster’s central galaxy ...

A newly spotted interstellar comet is passing through our solar system at a blistering speed of 130,000 miles per hour, ...

The explosion of a star was detected using an AI tool designed to instantly identify unusual cosmic phenomena.

A Harvard University astrophysicist has suggested the incoming interstellar object 3I/ATLAS could be an alien probe. But NASA and most astronomers say it’s almost certainly a comet.3I/ATLAS, also ...

The new findings on exoplanet TRAPPIST-1d, published in The Astrophysical Journal on Wednesday, mirror similar results for TRAPPIST-1b and TRAPPIST-1c, which orbit closer to their red dwarf host, a ...

An ultra-short period planet is spiraling toward destruction within 31 million years. Its extreme heat and dense composition reveal a violent past. Our circumstances here on the wondrous, ...

The massive " Cosmic Horseshoe " galaxy system likely hosts a colossal black hole measuring 36 billion times the mass of our ...

Because the jet is aimed almost directly toward Earth, its brightness is amplified “by a factor of 30 or more,” said co-author Jack Livingston. At the same time, perspective plays a trick on observers ...

Astronomers report that the Atacama Large Millimeter/submillimeter Array ( ALMA) has discovered traces of oxygen in the very ...

Black holes are dark, menacing objects with gravity so intense that not even light can escape, so you don’t want to mess with ...

Using AI, astronomers discover a new type of supernova, SN 2023zkd, the strongest evidence yet of a dying star being ...

The scenario closest to the observations, the researchers determined, involved a massive dying star and a compact object such ...