When 3I/ATLAS swept past the sun in late October 2025, it became only the third confirmed visitor from interstellar space ever detected. Unlike the mysterious 'Oumuamua, which revealed almost nothing ...

Interstellar comet 3I/ATLAS made its closest approach to Earth on Friday, Dec. 19. The comet will pass within about 170 million miles of our planet and poses no danger. While not visible to the naked ...

Interstellar comet 3I/ATLAS streaks across the sky with a blue plasma tail, photographed from June Lake, California, on December 14, 2025. Dan Bartlett One of only three known interstellar objects ...

An interstellar comet first spotted passing through our solar system in July is beginning its departure from our corner of the universe — but first it will fly by Earth, and scientists are capturing ...

Wisconsinites will have a chance to see an interstellar comet make its closest approach to Earth this week. Scientists first observed Comet 3I/ATLAS in our solar system in early July, and by late ...

Scientists used the Gemini North telescope in Hawaii to obtain images of the third-ever detected interstellar object, Comet 3I/ATLAS, on Nov. 26, 2025. Credit: NSF NOIRLab In the spirit of the season, ...

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 ...

Scientists in Boulder are using existing NASA spacecraft to track a rare interstellar comet called 31/ATLAS as it travels through Earth’s solar system. Comet 3I/ATLAS was first observed on July 1 and ...

NASA has shared new images of comet 3I/ATLAS, the interstellar visitor that’s due to be visible from Earth again soon before leaving our solar system. The comet was first discovered by the NASA-funded ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Today, NASA released the most detailed images yet of 3I/ATLAS. The ...

A comet discovered earlier this year continues to break apart after its close brush with the sun this month. Astronomer Gianluca Masi of the Virtual Telescope Project captured breathtaking imagery of ...

With the government reopened, the space agency at last released pictures captured by a fleet of government spacecraft of an object that came from beyond our solar system. By Kenneth Chang Month-old ...