Astronomers study 3I/Atlas as its tail rapidly expands and a strange cosmic radio signal reaches Earth, sparking new debate ...

Astronomers at the MeerKAT radio telescope in South Africa have reported the first radio detection from interstellar object 3I/ATLAS. First a recap for anyone who isn't up to speed with our third ...

What: Comet 3I/ATLAS reached perihelion on October 30, 2025. This special SETI Live explored what scientists have learned about its origin, chemistry, and trajectory ...

On July 1, 2025, astronomers at the Asteroid Terrestrial-impact Last Alert System (ATLAS) in Hawaii detected a large object ...

The interstellar comet 3I/ATLAS is not just a visual spectacle but also a scientific treasure. As the third such interstellar ...

The interstellar object known as 3I/ATLAS has drawn new scrutiny from astronomers after Harvard astrophysicist Avi Loeb ...

Slavin, Jonathan D. and Frisch, Priscilla C. 2007. "The Chemical Composition of Interstellar Matter at the Solar Location." Space Science Reviews, 130 409–414.

Scientists were surprised to note that 3I/ATLAS brightened much faster than they anticipated during its perihelion last week.

Comet 3I/ATLAS reached perihelion on October 30, 2025. While astronomers around the world had been watching this rare ...

Just a couple of short years ago, the world was abuzz with excitement as a human-made spacecraft was hurtling through space, bringing with it samples of a world so alien and distant that we've never ...