NASA’s Transiting Exoplanet Survey Satellite has once again surprised astronomers by tracking interstellar comet 3I/ATLAS, a ...

A rare, green-glowing comet will make its closest approach to Earth next week — and it won’t return for more than a thousand years. Comet C/2025 A6 (Lemmon), described by National Geographic as “this ...

The interstellar comet 3I/ATLAS made its closest approach to Earth today (Dec. 19, 2025). Here's the latest news you need to know. Good morning, Space Fans! As of today, we are T-2 days until the ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space telescopes and orbiters have been documenting the rare visit. A mysterious ...

On April 17, the comet may be the most visible, according to NASA. There will be a new moon that night, meaning the comet ...

NASA on Wednesday released new images of an interstellar comet, just the third visitor ever confirmed from elsewhere in the galaxy, which show the object as a bright point of light surrounded by a ...

(CNN) — The latest images of an interstellar comet shared by NASA have captured how an array of spacecraft witnessed a flyby that was truly out of this world, revealing clues to the object’s ...

3I/ATLAS is the third interstellar object ever discovered in our solar system. Telescope observations suggest it is a roughly 7-mile-wide (11 kilometers) comet zooming at more than 130,000 mph ...