NGC 3603-A1 is a pair of giant stars locked in a rapid 3.8-day orbit. Their dynamic relationship provides clues to how massive stars evolve and form black holes. A team of astronomers combined archiva ...

I/ATLAS interstellar object has shifted from red to green-blue glow, produced an anti-tail, and revealed unusual gas ...

A telescope in Chile recently glimpsed 3I/ATLAS' glowing tail, which observations reveal has grown as the interstellar object ...

New Hubble Telescope imagery of the interstellar interloper comet 3I/ATLAS reveals a dusty coma and the beginning of a tail.

NASA’s Hubble Space Telescope has captured its most detailed image yet of interstellar comet 3I/ATLAS. The rare comet is ...

The Hubble Space Telescope has glimpsed the most distant single star it's ever observed, glimmering 28 billion light-years away.

A new image shows the growing tail of a comet from another star system streaking across our solar system. The image of comet 3I/ATLAS was captured on Aug. 27 using one of the telescopes at the ...

It's a scene that could evoke popular fantasy stories, with sparkling stars shining above misty mountaintops, but the James ...

Discover 9 breathtaking Milky Way images captured by NASA’s Hubble Space Telescope, revealing the galaxy’s stunning structure ...

Astronomers using the Hubble Space Telescope have observed 3I/ATLAS, only the third known object from outside our Solar System to visit our neighborhood.

Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers determine the object’s size.

Of course, 3I/ATLAS is no ordinary comet. Discovered on July 1, 2025 by the Asteroid Terrestrial-impact Last Alert System ...