An interstellar comet changed its chemistry after passing the Sun, revealing hidden layers and a surprising mix of carbon ...

When a hunk of ice from another star system hurtles through our cosmic neighborhood, astronomers pay attention. When that ...

Add Yahoo as a preferred source to see more of our stories on Google. Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a sigh ...

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Add Yahoo as a preferred source to see more of our stories on Google. Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a sigh ...

The comet has been on our radars since the summer of 2025, when the Asteroid Terrestrial-impact Last Alert System (ATLAS) telescope in Río Hurtado, Chile, spotted it for the first time. It was ...

Comet 41P/Tuttle-Giacobini-Kresak has begun acting a little unusually, but there are likely natural explanations before we go ...

Space scientists have released a new image of the enigmatic space rock that traveled through our solar system. Researchers revealed the photograph shows the interstellar Comet 3I/ATLAS - speculated to ...

Scientists and NASA officials insist the object is a natural comet, not alien technology. Recent observations found no radio signals from the comet that would suggest it was artificial. The comet made ...

Scientists confirmed that the interstellar comet 3I/ATLAS, which passed closest to Earth in December 2025, showed no detectable technosignatures strong enough to suggest it is an alien spacecraft.

Astronomers say that there are possible signs of life on Comet 67P, based on data from the European Space Agency's Philae Lander. The comet has features that indicate it may be home to alien life, ...