Hale-Bopp originated in the Oort Cloud, a theoretical shell of icy planetesimals surrounding the sun in the outer reaches of ...

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the ...

An asteroid named for the ancient Egyptian god of darkness and disorder may not pose a hazard to Earth, but that does not ...

Surface features of Uranus' icy moon Miranda point to the existence of a once deep ocean, one that still may exist today.

For nearly 40 years, scientists have generally agreed that Earth's Moon formed from debris after a massive collision with our ...

By 3.6 billion years ago, Mars should have become too cold for liquid water, but something kept the rivers flowing.

Researchers at Penn State University suggest that Earth’s only satellite may have come from a “binary-exchange capture” ...

This theory comes from the work of Ian Pamerleau, a PhD student, and Mike Sori, assistant professor in Purdue’s Department of ...

Feb. 8, 2023 — Scientists have discovered a new ring system around a dwarf planet on the edge of the Solar System ... now developed a single atmospheric model that matches observations of ...

Let us talk about celestial navigation lessons for combat pilots and the first cosmonauts, interactive exhibits, a film ...

Beyond Neptune lies the Kuiper Belt, a vast region of icy bodies that holds the secrets to the solar system’s formation.

Written by the former chief historian of NASA, the book examines the evolution of our cosmic understanding—from early civilizations to the present day ...