NASA has discovered a mysterious interstellar comet entering our solar system. Learn what this strange visitor is and how scientists are tracking it now.

But an international team of astronomers have detected the unmistakable signature of a gas giant planet orbiting the ...

The Gemini South telescope in Chile has been used by astronomers to detect a planet being devoured by its dying host star, a ...

Astronomers are monitoring an object headed our way that may have wandered over from another star system. Scientists have ...

New observations show a star that blew up in two separate bursts, confirming a long-suspected cosmic phenomenon called a ...

New research is shedding light on what researchers call "lite" intermediate-mass black holes, which are smaller, but still ...

Astronomers have confirmed that a recently spotted object is an interstellar visitor, and appears to have come from the ...

Astronomers capture first image of a white dwarf exploding twice in space Rare double-detonation seen in supernova remnant ...

Dennis Mammana Stargazers We live in a world defined by inches, feet and miles (or centimeters, meters and kilometers, if you prefer), and it’s not difficult for most of us to comprehend sizes and ...

In April, scientists announced that they had used NASA’s James Webb Space Telescope to find a potential signature of alien life in the glow of a distant planet. Other scientists were quick to ...

Newfound interstellar object 3I/ATLAS may be carrying pristine material from early in the Milky Way’s star-forming history.

A fluffy, Jupiter-sized planet may be triggering deadly flares from its star, leading to the slow destruction of its own ...