The 3I/ATLAS comet was first spotted in July near Jupiter after it entered our solar system from another universe. Here’s ...

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The bold question-askers at What If explore what could happen if a quasar entered our solar system. Pentagon removes key protections for civilian workers, moves to fire with ‘speed and conviction’ ...

An interstellar comet that originated outside our solar system just flew by the sun. Next, the object will fly by Earth in ...

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Humanity has achieved incredible milestones in space exploration, from landing on the Moon to sending probes beyond our solar system—but true interstellar travel remains far beyond our reach. This ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

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On July 1, 2025, NASA’s ATLAS telescope in Chile spotted a fast moving dot, 3I/ATLAS, travelling at 61 kilometres per second.

NASA's Voyager 2 spacecraft captured dark streaks produced by geysers visible on the icy surface of Triton's south polar ...

We can't journey to other planetary systems to explore them, but 3I/ATLAS was likely ejected ... and it will soon be headed back out of our solar system, never to return. 3I ATLAS interstellar comet ...