Add Yahoo as a preferred source to see more of our stories on Google. 3I/ATLAS photographed by the Gemini South telescope on 27 August 2025, revealing a tail pointed away from the Sun. (CREDIT: ...

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the third known interstellar comet ever spotted. When scientists turned NASA’s ...

For millions of years, a frozen traveler drifted in silence through the stars, carrying secrets from another world. This summer, that interstellar visitor—now known as 3I/ATLAS—passed through our ...