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‘Difficult to explain’ comet 3I/ATLAS erupts in X-rays after 400,000-km halo appears

Interstellar comet 3I/ATLAS has turned into one of the strangest visitors in the recent history of the solar system, ...
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X-ray eyes reveal a hidden structure on interstellar comet 3I/ATLAS

Interstellar comet 3I/ATLAS has gone from a faint outsider to one of the most closely watched visitors in the Solar System, and now astronomers have effectively given it X-ray vision. By turning space ...