Massive interstellar object 3I/ATLAS, larger than Manhattan, shows unusual glow pattern and planetary alignment that Harvard ...

3I/ATLAS isn't just fascinating because it is the third interstellar visitor found in the solar system; new research suggests ...

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar system by more than 3 billion years, researchers say.

I/ATLAS may be more than the strangest space object astronomers have observed within our solar system—it could also be one of ...

Is it alien? Is it natural? Those questions have followed the interstellar comet known as 3I/ATLAS since it entered our solar system last year from beyond our own star system. A new study released ...

The mysterious space rock that passed through our solar system grew significantly brighter as it left, according to scientists. Researchers say Comet 3I/ATLAS, suggested to be a hostile alien ...

I thought about the interstellar visitor as my daughter, wife, and I took turns dragging his wandering monster truck balloon ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. An artist's impression of ...

Add Yahoo as a preferred source to see more of our stories on Google. Pictures of 3I/ATLAS will soon be all we have to remind us of the strange interstellar comet and its brief visit to our cosmic ...

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system. But it may not be around much longer. The otherworldly visitor to ...

These December 2025 observations by NASA's SPHEREx show the infrared light emitted by the dust, water, organic molecules, and carbon dioxide contained within comet 3I/ATLAS's coma during the mission's ...