The 3I/ATLAS, which was first spotted on July 1, has the fastest velocity of any solar system visitor to date, NASA says. The ...

Discovered last month by a telescope in Chile, the comet known as 3I-Atlas is only the third known interstellar object to ...

U-M astronomers are helping study a fast-moving, ancient, and massive comet that formed beyond our galaxy. A group of ...

A cosmic visitor is stirring up an earthly debate. A Harvard University astrophysicist has suggested the incoming ...

Hubble telescope captures third interstellar visitor 3I/ATLAS showing active dust coma racing through solar system.

A massive comet trail may have caused climate upheaval on Earth more than 12,000 years ago, sparking the Younger Dryas.

Researchers reveal how cosmic airbursts strike Earth without craters - and why they may be more common and destructive than ...

"We should put all possibilities on the table that it's a rock, a comet, or something else until we get the evidence, the ...

STARGAZERS are preparing for one of the best meteor showers in the astronomical calendar with up to 150 fireballs shooting ...

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" ...

New research uncovered compelling evidence that water from a comet is strikingly similar to that found in Earth’s oceans, ...

Scientists have uncovered microscopic clues buried deep in the ocean floor that could support a bold theory — a comet ...