Astronomers might have found evidence of a structure located farbeyond Neptune, potentially giving us clues about the solar system’s primordial past. This discovery involves a dense concentration of ...

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 ...

New 3I/ATLAS images from NASA and the ESA suggest the interstellar comet is active as it approaches Earth in December.

Last month, mysterious interstellar object 3I/ATLAS came within just 18 million miles of Mars during its unusual trajectory through our solar system. During its approach, NASA’s Mars Reconnaissance ...

Despite some similarities and speculation, the new comet likely originated from our solar system's Oort Cloud and is not directly connected to 3I/ATLAS. The comet will make its closest approach to ...

Analysis of the second confirmed interstellar comet to visit our solar system suggests that the alien body could be covered ...

A Harvard astronomer is making waves by suggesting that a massive interstellar object hurtling through our solar system might be an alien spacecraft. Professor Avi Loeb, who also serves as director of ...

PUNCH’s observations of comet 3I/ATLAS from Sept. 28 to Oct. 10, 2025, when the comet was between 231 million to 235 million miles from Earth. Each frame is a daily stacked image, made up of multiple ...

We know of three interstellar objects (ISO) that have visited our inner solar system. Oumuamua was the first one, and it came and went in 2017. 2l/Borisov, an interstellar comet, was next, appearing ...

An ancient comet discovered in our solar system this summer is offering a rare opportunity to learn more about distant planetary systems far beyond the reach of any spacecraft, researchers say. The ...