A rare discovery beyond Neptune is forcing scientists to rethink early solar system dynamics and the forces that shaped ...

It was long thought, up until recently, that asteroids and comets delivered Earth's oceans during the very early Solar System ...

Twin siblings, twin peaks, twin cities, twin planets... Two earths, one solar system. How would that work?

Despite its small size, Mars seems to have a huge impact on the orbital cycles that govern Earth’s climate, especially those ...

The curious minds at What If investigate whether it is possible to fit another Earth in our solar system, revealing orbital ...

When a solar storm strikes Earth, it can disrupt technology that's vital for our daily lives. Solar storms occur when ...

When my colleagues and I send them out to explore our solar system, it's important for us to understand the 3D map of our ...

New research suggests Earth’s water came from sources other than meteorites, challenging long-standing theories on planetary ...

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

The space rock is hurtling through our cosmic backyard at a zippy 26,200 miles per hour, according to the space agency.

Earth and its neighbors orbit the sun on a relatively flat plane. But what's below this plane, and is anythign below the ...

Ancient Moon dust, meteorite traces and Apollo samples are helping NASA scientists rethink where Earth’s water truly came ...