Hubble Captures First Images of Ancient Interstellar Visitor Comet 3I/ATLAS

The Hubble Space Telescope has taken its preliminary photographs of comet 3I/ATLAS, a comet visiting us from past our photo voltaic system that not too long ago fell aside — however not earlier than it struck a pose for the cameras. It’s solely the third such object ever identified, after 1I/ʻOumuamua in 2017 and 2I/Borisov in 2019. The topic of quite a few scientific tweets and a few frantic searches by astronomers anxious to determine simply what it’s — and the place it got here from — earlier than it’s gone into the pitch black of deep area ceaselessly, 3I/ATLAS was first sighted by the ATLAS survey telescope on July 1, 2025.

Ancient Interstellar Comet 3I/ATLAS Offers Clues to Planetary Systems Beyond Our Own

According to As per Space.com, current research point out that 3I/ATLAS could possibly be some 7 billion years outdated, properly past the 4.6 billion years of our photo voltaic system. That’s a sign that the comet arose within the extra historical components of the Milky Way, which might give researchers a uncommon glimpse of what the early days of different planetary methods had been like. Undergraduate researcher Astrafoxen first flagged the Hubble photographs on Bluesky, noting the comet’s “nice and puffy” coma, regardless of interference from cosmic rays.

A newly out there preprint paper has already revealed that 3I/ATLAS incorporates considerable water ice and a mud make-up resembling D-type asteroids—organic-rich our bodies usually discovered within the outer photo voltaic system. Unlike ultrared trans-Neptunian objects, D-types are believed to have excessive carbon and silicate content material, probably shedding mild on the comet’s deep-space origins and risky chemistry.

The comet 3I/ATLAS was found simply because the Vera C. Rubin Observatory was gearing as much as perform its preliminary observations of the heavens, dovetailing with the LSST’s anticipated discovery of many extra interstellar objects within the coming decade.

Until then, 3I/ATLAS holds the astronomical highlight. Its temporary photo voltaic system passage provides a valuable alternative for researchers to analyse the fabric make-up of alien planetary methods. The Hubble photographs, now out there for obtain, are anticipated to help future papers as scientists proceed to unravel the story of this historical cosmic traveller.