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

The harmless object is currently near Jupiter hundreds of millions of miles (kilometers) away and moving toward Mars, but it ...

The European Space Agency (ESA) said it is monitoring an unidentified object alongside Russia identified only as A11pl3Z as it hurtles at astonishing speed from outside the Milky Way ...

Astronomers have discovered a new object that originated outside of our Solar System — only the third to be found.

The comet broke into 21 fragments, which continued to orbit around Jupiter. It was discovered the following year by Carolyn and Eugene M. Shoemaker, and David Levy and was the first comet ever ...

It appears our solar system is getting more popular with out-of-towners. Astronomers have found a third interstellar object, ...

A new interstellar object has been spotted careening into the solar system at an extremely unusual trajectory.

A comet like the fictional Jesper is what’s known as a Jupiter family comet, so named because they have orbits which extend roughly to the orbit of Jupiter. Most comets , however, are more distant.

Image of comet P/Shoemaker-Levy 9 taken in red light on a collision course with Jupiter. Its train of 21 icy fragments stretched across 710 thousand miles (1.1 million km) of space, or 3 times the ...

Jupiter-family comets, named for their gravitational ties to Jupiter, are icy relics of the Kuiper Belt, a region beyond Neptune. These short-period comets, with orbits lasting less than 20 years, ...

Skies over South Carolina kick off 2025 with a planet parade, ancient comet and the muse of "Beyond Antares," a 23rd-century love song from "Star Trek" fame. SC skygazers in store for rare planet ...