Interstellar gatecrasher 2I/Borisov is no ordinary comet

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Interstellar gatecrasher 2I/Borisov is no ordinary comet

Only the second interstellar object ever detected passing through the solar system.

Scientists have discovered that a comet called 2I/Borisov - only the second interstellar object ever detected passing through the solar system - is surprisingly different in its composition from comets hailing from our celestial neighborhood. Gas coming off 2I/Borisov contained high amounts of ...

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