Interstellar comet 3I/ATLAS reveals ancient secrets and strange chemistry as the largest object of its kind ever tracked.

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

Researchers have confirmed the mass of a free-floating planet thanks to a lucky convergence of ground- and space-based ...

Until now, scientists believed that Mars’ skylights – pits in the surface of mars – were formed by volcanic activity. But ...

Harvard's Avi Loeb argues 3I/ATLAS shows signs of alien technology, from its 0.2% probability flight path to bizarre metal ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

Unlike ʻOumuamua's eerie lack of coma or Borisov's more predictable gas cloud, 3I/ATLAS stayed stubbornly inert until late, ...

The night was warm and muggy over New Castle Air Force Base in Delaware, the kind of heat that clung to the metal skins of the alert fighter jets lined along the runway.

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

Discover compelling UFO headlines from 2025, featuring new scientific evidence, mysterious underwater objects and government ...

The Perseverance rover has been exploring the Jezero Crater for years, and it's finally found a potential meteorite, now ...

A mysterious metal shard, once thought to be a piece of a UFO that crashed in 1947, has sparked years of wild speculation.