Our solar system's latest and only third known interstellar visitor is becoming more fascinating by the minute. Spotted in early July, the object, dubbed 3I/ATLAS, is believed to be a comet. It's ...

Called 3I/ATLAS, the comet is only the third of its kind known to astronomers, and it’s likely been heading our way for billions of years, carrying pristine material from another star system ...

Earlier this month astronomers were thrilled to discover only the third known interstellar object ever seen in our solar system. It will reach about the orbit of Mars before it boomerangs back ...

By Ashley Strickland, CNN (CNN) — A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system. The Hubble Telescope and its Wide Field Camera 3 ...

News What we know about the interstellar object that has suddenly appeared in our solar system Updated: Aug. 09, 2025, 1:40 p.m. | Published: Aug. 09, 2025, 1:31 p.m.

As evidence continues to mount that the mysterious object with interstellar origins currently speeding toward the inner solar system at a breakneck speed is a comet, not everybody's convinced ...

A different paper focused instead on similarities with many of the Solar System objects, including some comets, and stresses that the differences are most marked against ‘Oumuamua and Comet Borisov.

The solar system’s newest visitor, 3I/ATLAS, may be 3 billion years older than the sun and its planets. First discovered on July 1, 3I/ATLAS is a rare interstellar object — only the third ever ...

The Subaru telescope located at the Mauna Kea Observatory on Hawai'i has found a new world within our Solar System, dubbed "Ammonite" by the team who found it. In 2003, NASA-funded researchers ...

Is it an alien spaceship or an ancient comet? That’s the question puzzling UFO enthusiasts, NASA, and the European Space Agency since an interstellar visitor entered our solar system last month.