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For months now, astronomers have been closely watching the mysterious interstellar object 3I/ATLAS as it rips through the solar system at a breakneck velocity. And before it finally leaves us for good ...

The mysterious Manhattan-sized interstellar object 3I/ATLAS appears to have no cometary tail in new images, which would eliminate the conventional explanation for the surprising “non-gravitational ...

The Manhattan-size interstellar object 3I/ATLAS exhibited signs of non-gravitational acceleration and appeared “bluer than the sun” as it passed our local star — which could be signs of an alien craft ...

A rare interstellar comet reaches its closest point to the sun on Wednesday and Thursday — and it's exciting astronomers around the world. Comet 3I/ATLAS is just the third confirmed interstellar ...

NBC News' Gadi Schwartz talks to Harvard Professor Avi Loeb about the new images released of interstellar object 3I/Atlas as it passed by Mars and how the government shutdown is impacting the release ...

The third interstellar object ever detected in the solar system will make a close approach to Mars, giving the opportunity for spacecraft and orbiters around the red planet to capture the interstellar ...

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Aaron Buss received funding from the Eunice Kennedy Shriver National Institute of Child Health and Human Development. Alexis McCraw does not work for, consult, own shares in or receive funding from ...

Earlier this year, astronomers spotted a mysterious interstellar visitor, widely believed to be a comet, screaming into our solar system. With the help of NASA’s James Webb Space Telescope, ...

Called 3I/ATLAS, the object is only the third of its kind known to astronomers, and it’s likely been heading our way for billions of years, carrying pristine material from another star system Jay ...