The third known visitor from another star system, Comet 3I/ATLAS, has been racing through the Solar System with just enough ...
In late November 2025, astronomers captured an unprecedented cosmic signature: the first X-ray emissions ever detected from ...
Astronomers studying the interstellar object known as 3I/ATLAS say new observations from the Gemini North Telescope in Hawaii have revealed a striking chemical transformation as the comet exits the ...
Astronomers scanned the interstellar object 3I/ATLAS for alien signals using the Green Bank Telescope, but found none. The ...
Astronomers have been scanning the skies for alien radio signals for decades, but so far they’ve heard nary a peep (with one possible exception). But according to a recent study, that could be because ...