ESA's Gaia mission has determined he orbits of 154,741 asteroids in our solar system. Credit: ESA/Gaia/DPAC ...

The Pentagon's latest declassified UAP files, including eyewitness videos and historical documents, have reignited interest ...

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously ...

In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from ...

In the book version of “Project Hail Mary,” author Andy Weir, known for grounding his fiction in plausible science, describes ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

The planets are extremely large, with TOI-791 b being about the same size as Jupiter, and TOI-791 c even larger. Yet, they ...

The recent discovery of an enigmatic substance on the surfaces of both Titan, Saturn’s largest moon, and Pluto, our solar ...

Based on evidence collected by the James Webb Space Telescope, researchers have found that interstellar comet 3I/ATLAS could ...

An interstellar comet that passed through the Solar System last year may be up to 12 billion years old – far older than the ...

Ad Astra ending explained with Roy’s final choice, Clifford’s fate, the Lima Project, the Surge, and what the movie’s ending ...