A curious coincidence marks the beginning of the story of the interstellar comet 3I/ATLAS: it was photographed by an ...

After months hidden behind the Sun, 3I Atlas reappeared in December 2025 looking nothing like a normal comet. Hubble images ...

A comet from another star system does not arrive every year. That is part of what made 3I/ATLAS so compelling when it ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...

Scientists at the SETI Institute recently searched for technological signals from 3I/ATLAS, the third interstellar object ...

3I/ATLAS is surrounded by “a complex jet structure,” new images show, sparking fresh speculation that the Manhattan-sized interstellar object could be an artificial alien craft. The images, captured ...

When Comet 3I/ATLAS entered our solar system last year—only the third known interstellar object to do so—astronomers took ...

A deep image of interstellar Comet 3I/ATLAS captured by the Gemini Multi-Object Spectrograph (GMOS) on Gemini South at Cerro Pachón in Chile, one half of the International Gemini Observatory and ...

Scientists failed to find radio signals emanating from interstellar comet 3I/ATLAS, further bolstering its status as a ...

3I/ATLAS showed a complex tail structure early this morning of November 8, 2925. It was observed at 29 degrees elongation from the Sun. In July and August , other researchers calculated that 3I Atlas ...

Space agencies around the globe have launched an unprecedented wave of planetary defense exercises, all centered on a mysterious interstellar visitor that refuses to behave like anything scientists ...

A mysterious object spotted hurtling toward Earth has sparked a wave of global panic and wild alien invasion theories online. Unsplash Astronomers have confirmed the discovery of a new interstellar ...