Is 3I/ATLAS an alien craft or just an extraordinary cosmic visitor? That question has resurfaced after the Central Intelligence Agency (CIA) refused to confirm or deny whether it holds classified ...

This x-ray image from ESA's XMM-Newton spacecraft shows interstellar comet 3I/ATLAS glowing red as gases streaming from the comet collide with the solar wind, producing low-energy x-ray emission. Even ...

Even by the strange standards of interstellar visitors, 3I/ATLAS is turning into a real cosmic outlier. Discovered on July 1, 2025 by the ATLAS telescope in Chile, this Manhattan-sized interloper — ...

The arrival of the interstellar object 3I/ATLAS has reignited one of the most profound debates in science: whether Earth's biological history is unique or the result of ancient extraterrestrial ...

Add Yahoo as a preferred source to see more of our stories on Google. Chief Transportation Correspondent MayCay Beeler talks with Harvard Professor and astrophysicist Dr. Avi Loeb about the intrigue ...