Scientists found proof that a giant early planet existed in the solar system 4.5 billion years ago.

The object, called 3I/ATLAS, is only the third interstellar visitor ever detected passing through our Solar System.

Since the dawn of the solar system, rocky visitors from deep space have blazed across Earth’s skies. When will the next asteroid or interstellar object make its pass by our planet?

The James Webb Space Telescope observed a large amount of methane around 3I/ATLAS, revealing just how different it is from ...

Astronomers surveying the outer solar system have revealed that a rare object far beyond Neptune is moving in sync with the eighth planet in an unexpected way. Called 2020 VN40 and first discovered in ...

Scientists at the SETI Institute recently searched for technological signals from 3I/ATLAS, the third interstellar object ...

NASA-supported scientists have provided new information about how the early Earth may have acquired some elements necessary ...

A NASA probe that had a close encounter with a strange object from another solar system has been declared dead and scientists ...

Carnegie’s Scott Sheppard and his colleagues — Northern Arizona University’s Chad Trujillo, and the University of Hawaii’s David Tholen — are once again redefining our solar system’s edge. They ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

New telescopes will give breathtaking insight into what, or who, is visiting Earth's neighborhood. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works ...

A team of astronomers has discovered the most-distant body ever observed in our Solar System. It is the first known Solar System object that has been detected at a distance that is more than 100 times ...