3I/ATLAS came from beyond the Solar System, and its chemistry may point to a formation age of roughly 10 to 12 billion years.

Before our Sun ignited, before Earth was even a cloud of dust, this thing was already out there, drifting between the stars.

Add Yahoo as a preferred source to see more of our stories on Google. On Dec. 19, "this erratic wanderer will be the closest to Earth that it will ever be over the lifetime of the entire universe," ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Comet 3I/ATLAS—the third interstellar object ever known to pass through ...

Add Yahoo as a preferred source to see more of our stories on Google. An interstellar object trespassing in our solar system known as 3I/ATLAS has captivated the public for months, and it's easy to ...

Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. Nov 17, 2025, 05:21am EST Nov 28, 2025, 12:25am EST A team ...

3I/ATLAS is surrounded by “a complex jet structure,” new images show, sparking fresh speculation that the Manhattan-sized interstellar object could be an artificial alien craft. The images, captured ...

The comet is the 3rd interstellar object ever detected and got its name from the ATLAS telescope that discovered it. NASA officials have rejected conspiracy theories that the object could be an alien ...

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The interstellar comet 3I/ATLAS was confirmed in July 2025 as the third known object to visit our solar system from interstellar space. Despite conspiracy theories, scientists say 3I/ATLAS shows all ...

An interstellar object named 3I/ATLAS, confirmed to be a comet, is passing through Earth's solar system. The comet poses no threat to Earth and will make its closest approach to our planet on Dec. 19.

This week, just days before Christmas, the interstellar comet 3I/ATLAS will make its closest approach to planet Earth – so close, that anyone with a "powerful amateur" telescope might see it. Here's ...