New 3I/ATLAS images from NASA and the ESA suggest the interstellar comet is active as it approaches Earth in December.

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

I/ATLAS attracted attention when it was confirmed to be only the third body originating from another star system.

NASA’s Hubble Space Telescope captured a deeper look at interstellar comet 3I/ATLAS, with its Wide Field Camera 3 instrument, ...

NASA scientists are sounding an alarm that would have been unthinkable a decade ago: the same commercial satellite ...

NASA’s Hubble Telescope photographed the comet on November 30. At that time, the comet was still very far — about 178 million ...

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's ...

The Hubble Space Telescope has turned its sharp eye toward a ghostly swirl of stars and gas known as the "Lost Galaxy," given ...

A new research paper finds that the amount of light pollution coming from satellites could ruin NASA's Hubble Space Telescope ...

Thirty-five years ago today a revolutionary new era of astronomy began when the Hubble Space Telescope, tucked onboard the space shuttle Discovery, blasted off Earth into history. The next day a ...

After a month of head-scratching, NASA engineers finally think they've identified the glitch that took out the world's most powerful space telescope more than a month ago. The Hubble Space Telescope, ...