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 ...

A rare observation opportunity revealed the presence of a thin atmosphere around a small object beyond Pluto.

The outer reaches of our Solar System continue to reveal a complex dynamical environment where the interplay of gravitational forces shapes the orbits of a myriad of distant bodies. Research in this ...

Pluto was believed to be the only body beyond Neptune with an atmosphere. Now, a new discovery in our solar system is ...

By Will Dunham WASHINGTON, May 4 (Reuters) - In the far reaches of our solar system - beyond the outermost planet Neptune - ...

A mysterious object traveling through our solar system may have emitted a signal, according to a scientist. This enigmatic entity, potentially originating from beyond our solar system, has sparked ...

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 ...

The Solar system is bigger than NASA thought. There are a lot of huge objects at the edge of the solar system that we have not seen but can indirectly estimate. When astronomers say Kuiper Belt Object ...

SAN ANGELO, Texas (Concho Valley Homepage) — Angelo State University’s (ASU) Department of Physics and Geosciences explains the new object in our solar system that was announced on July 15 and ...

The presence of deuterium, an isotope of hydrogen, in 3I/ATLAS suggests the interstellar comet formed in a much colder place ...

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 ...