An ancient comet discovered in our solar system this summer is offering a rare opportunity to learn more about distant planetary systems far beyond the reach of any spacecraft, researchers say. The ...

A mysterious interstellar visitor traipsing through our solar system known as 3I/ATLAS has captivated the public for months, and it's easy to see why. But as 3I/ATLAS' renown (and infamy) only ...

Back in October, astronomers discovered the first known interstellar object passing through our solar system. Interstellar meaning that it came from another planet around another star and was somehow ...