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Interstellar comet comes closest to Earth

Farewell, comet 3I/ATLAS! Interstellar visitor heads for the outer solar system after its closest approach to Earth

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system. On Friday (Dec. 19), the interstellar invader, comet 3I/ATLAS, made its closest approach to Earth, coming to within 168 million miles (270 million kilometers) of our planet at 1 a.m. EST (0600 GMT).

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Countdown clock to 3I/ATLAS. When will interstellar comet pass by Earth?

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Interstellar 3I/ATLAS nears Earth, poses no threat. How to see it in Florida

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A comet from an entirely different solar system is flying through ours, NASA says

An interstellar tourist is taking a quick trip through our solar system, becoming one of just three known objects to ever do so, according to NASA. A comet from a solar system outside our own ...

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Earth and solar system may have been shaped by nearby exploding star

A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...

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Interstellar comet comes closest to Earth

A comet from an entirely different solar system is flying through ours, NASA says

Earth and solar system may have been shaped by nearby exploding star

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