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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 ...
Interstellar Comet 3I/ATLAS makes its closest Earth pass early on Dec. 19. Here's what astronomers know about its origin and ...
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