Humanity's exploration of outer space continues to unveil astonishing discoveries that challenge our understanding of the ...

This week, revisit what you know about Uranus, explore the far side of the moon, rediscover the famed fossil known as Lucy, ...

Earth, between sweltering Venus and frozen Mars, formed and orbits within a band where water could persist in solid, liquid, and gaseous phases. Mars had surface water, but not as much as Earth, and ...

Scientists are reconsidering old information about Uranus. NPR's Scott Simon explains the problem with photos taken of the ...

Some minerals in lava could suggest water is nearby.

The movements of the planets in the Solar System are pretty difficult to get your head around, even before we get started on ...

Astronomers using the James Webb Space Telescope have detected possible signs of gases released by volcanic activity on a ...

We're showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to ...

A 3D map of our cosmic neighborhood has revealed hot and cold regions as well as an "escape tunnel" from our local bubble.

A team of scientists has found evidence of liquid water on Mars from 742 million years ago in a Martian meteorite known as ...

By probing chemical processes observed in the Earth's hot mantle, Cornell scientists have started developing a library of ...

It must have cleared all other celestial bodies, except its own moons, from its orbit.