Solar scientists have unveiled spectacular new images of plasma "rain" in the sun's corona using adaptive optics.

A decade after the release of The Martian and a decade out from the world it envisions, a planetary scientist checks in ...

No telescope? No problem. These astronomy apps turn your phone into a sky guide perfect for spotting stars, planets, and ...

Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it travels on a highly ...

For instance, Neptune migrated outward, switching places with Uranus, and pushed a lot of the small, icy bodies into the ...