3I/ATLAS, the third interstellar comet seen in our solar system, will make its closest approach to Earth on December 19. However, it isn't coming that close, and will be 270 million kilometres away.

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The interstellar comet 3I/ATLAS makes its closest approach to Earth early Friday. Scientists have tracked the object since its July discovery and confirmed it is a comet, despite online speculation ...

The Green Bank Telescope's targeted scan of 3I/ATLAS for signs of radio transmitting tech has come up empty -- but Harvard scientist Avi Loeb maintains that the interstellar comet could nonetheless be ...

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The infrared space telescope also detected water vapor, carbon dioxide and organic compounds streaming from the departing comet two months after it made its closest approach to the sun. When you ...