Abraham Loeb has theorized that the recently discovered interstellar object 3I/ATLAS could be alien technology, but ASU's ...

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" ...

A newly discovered object speeding through our solar system could be something far stranger than a comet, possibly even alien ...

Interstellar objects are visitors from solar systems beyond our own, and the third ever such object, known as 3I/ATLAS, has just been discovered. Using the Gemini North telescope, astronomers have ...

Comets are cosmic time capsules, but some carry stories from far beyond our Solar System. Join us for a live discussion on Comet 3I/ATLAS, the third known interstellar object to visit our cosmic ...

Scientists now say the 3I/ATLAS interstellar comet discovered earlier this month could be one of the oldest that astronomers have ever encountered and some 3 billion years older than our solar system.

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar system by more than 3 billion years, researchers say.

Astronomers discover comet 3 Eye Atlas from another galaxy. The interstellar object offers insights into space beyond our celestial borders.

A rare interstellar comet is flying through our solar system. Here's how—and when—you might be able to see Comet ATLAS from your backyard.

Watch interstellar comet 3I/ATLAS live online tonight as it races toward the sun on a rare visit from beyond our solar system.

A diagram shows the trajectory of interstellar Comet 3I/ATLAS as it passes through the solar system. It will make its closest approach to the sun in October.

3I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the galaxy.