(CBS Local/CNN)-- A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University ...

A scientist has recently posited that a mysterious interstellar object, potentially of extraterrestrial origin, appears to be dramatically decelerating, as if applying brakes. This intriguing ...

I/ATLAS is a natural celestial object with all the qualities typical to a comet. It doesn't just belong to our solar system.

When you buy through links on our articles, Future and its syndication partners may earn a commission. A recent Gemini Observatory image of comet 3I/ATLAS (background) overlaid with the new Two-meter ...

Since it was first spotted in early July, scientists have been fascinated by 3I/ATLAS — the third object in history to have been spotted cruising through our solar system from interstellar space. The ...

The vast, silent stretches of interstellar space have just coughed up another mystery, and it is one that has left the global ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Interstellar objects like 3I/ATLAS are most likely to enter our solar system from two specific directions, a new study suggests. What does it mean for Earth? When you purchase through links on our ...