Our gleaming blue marble of a planet is a treasure that shimmers and sparkles in the darkness of space. Most of humanity will ...

The comet will make its closest approach to Earth this Saturday before starting on its long orbital journey once more (if it ...

The ion tail of C/2023 A3 (Tsuchinshan-ATLAS) could appear as a blue streak across the northern hemisphere sky during October ...

A SpaceX Falcon 9 rocket snapped a pretty special in-space selfie on Monday (Oct. 7). The shot, captured during the launch of ...

Before Earth became the blue planet, it was engulfed by a very different kind of ocean: a vast, deep magma ocean reaching ...

This 2015 photo from the International Space Station showcases the deep tidal channels that cut through a line of cays in the ...

Lightning affects both Earth's atmosphere and space. It triggers high-energy electrons in radiation belts, creating risks for ...

People across the U.S. caught a glimpse of the northern lights last night as a geomagnetic storm roiled in our atmosphere.

The substance can contain up to 1.5 percent water, and if the ringwoodite under the surface has just 1 percent water in its ...

Two years ago, perhaps inspired by Dr. Wilson, the United Nations Convention on Biological Diversity laid out a global effort ...

The Hranice Abyss — or "Hranická propast," in Czech — is the deepest known freshwater cave in the world. Geologists think it ...

Mars and the Moon are the only two places Prof Cox could imagine seeing anybody visit and begin to build a permanent presence ...