SPHEREx tracked the interstellar comet as it grew considerably brighter after perihelion.

When NASA’s Stardust mission flew through a comet’s tail, it attempted something never done before — catching particles ...

A newly discovered comet has astronomers excited, with the potential to be a spectacular sight in early April. C/2026 A1 ...

The interstellar visitor may still have a few things to tell us before it leaves our solar system.

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory ...

3I/ATLAS is the third interstellar visitor ever to visit the solar system having been formed around a distant star. Tune in ...

Over the past 2,000 years, a series of spectacular comets have graced our skies. Without fanfare, they appear seemingly from ...

NASA on Wednesday released new images and data of Comet 3I/ATLAS, the rare interstellar object that set off weeks of speculation — and a full-blown online debate — over whether it could be an alien ...

Discover the latest findings on interstellar comet 3I/ATLAS, from rare methane detections to high-resolution Hubble images, ...