A comet born around a distant star is now tearing through our solar system at roughly 150,000 miles per hour, and astronomers ...

Earlier this year, on July 1, a 20-inch telescope in the Rio Hurtado Valley of Chile was conducting its nightly survey when it detected something remarkable. One of five telescopes in the NASA-funded ...

JWST detected rising methane emissions from interstellar comet 3I/ATLAS, exposing ancient interior ice and offering new ...

Cropped image of NASA’s James Webb Space Telescope observation of comet 3I/ATLAS with its Near-Infrared Spectrograph ...

Observational evidence now suggests that the comet “3I/ATLAS,” known as the third interstellar object to visit our Solar ...

One year ago, on July 1 2025, astronomers discovered a fascinating new object moving through the Solar System. Detected by the Asteroid Terrestrial-impact Last Alert System (ATLAS), the object was ...

For almost a decade—ever since 2017, when our first known interstellar visitor, 1I/‘Oumuamua, swooped through the inner solar ...

A strange class of comet could explain the enigmatic behavior of ‘Oumuamua, the first known interstellar object—and even shed ...

In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from ...

A cosmic traveler from beyond our solar system is making its closest approach to Earth this week, offering astronomers and stargazers a fleeting opportunity to witness a visitor from another star ...

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

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