NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and ...

A newly discovered object, dubbed A11pl3Z, appears to be moving too fast and straight to have originated in the solar system.

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

The newest visitor is 416 million miles from the sun, out near Jupiter, and heading this way at a blistering 37 miles per second. It's officially the third known interstellar object to pass ...

The first interstellar visitor observed from Earth was Oumuamua, Hawaiian for scout, in honor of the observatory in Hawaii that discovered it in 2017.

Astronomers have found a third interstellar object, something that has origins beyond our own solar system. The object, dubbed 3I/ATLAS, is not believed to pose any danger to Earth.