The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought experiment to it, highlighting everything about it that might align with a hypothetical alien spacecraft.

The NASA Interstellar Mapping and Acceleration Probe (IMAP) spacecraft is scheduled to launch on September 23, 2025, to study ...

Our solar system just got another guest from the galaxy. Find out how scientists spotted this third interstellar object, what ...

I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, astronomers detected a strange, fast-moving object racing toward the Sun. Named ...

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

As with many big space stories, 3I/ATLAS is getting a fair share of attention as well as some more controversial theories ...

Three missions aimed at observing space weather are set to launch Sept. 23 from Florida. Here's what to know about NASA's ...

Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

Could Alpha Centauri be a mirror of our own solar system? We dive into the secrets of this star system, reveal what ...

On Sept. 21-22, a partial solar eclipse will see the moon sweep over the sun's disk, blocking its light over a swathe of the ...

The coldest planet in the Solar System is Uranus, which is surprisingly colder than Neptune due to its unique internal heat ...