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 ...

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

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.

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 ...

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 ...

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 neighborhood. Fortunately, thanks to the world's space agencies, we'll ...