A team of international astronomers, including a University of Michigan doctoral student, were the first to publish the ...

How does a 15-kilometer-wide comet, moving at 152,000 miles per hour, slip into our solar system undetected until a global ...

How do we know 3I/ATLAS, also called comet C/2025 N1 (ATLAS), is interstellar? Will it strike Earth? Can we visit it? Here ...

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar ...

After defending his PhD thesis on modeling interstellar objects on Monday, June 30, Matthew Hopkins intended to take some ...

The ATLAS (short for Asteroid Terrestrial-impact Last Alert System) is a NASA-funded program developed by the University of ...

Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...

Scientists now say an interstellar comet discovered earlier this month could be one of the oldest that astronomers have ever ...

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar system.

Discover the rare interstellar comet 3i/Atlas, recently confirmed by NASA in July 2025. Learn what makes interstellar comets ...

A week and a half after its discovery, there are clues about the origin and age of the interstellar comet 3I/ATLAS – and ...

The object seems to be travelling on a steep path - suggesting it came from the Milky Way's "thick disk", an area of ancient ...