It took two years for NASA's OSIRIS-REx space probe to return from asteroid Bennu before dropping off a small capsule as it ...

Eight planets, hundreds of moons, hundreds of thousands of asteroids, and billions of comets orbiting our Sun make up our ...

Titan is the only moon in our solar system with a significant atmosphere. Now we have a very good idea of how this dense ...

An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an ...

Two new studies show a briny, carbon-rich environment on the parent body of the Bennu asteroid was suitable for assembling ...

The RPS uses two Stirling engines to convert the heat generated by the decay of Plutonium-238 (Pu-238) into electricity.

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

Michigan State University and NASA researchers discover seven dark comets that reveal new solar system secrets.

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

Active Surfaces says its thin, flexible solar collectibles can be attached not just to roofs, but walls, tents, backpacks, ...

Despite sweetening the pot by grandfathering existing rooftop solar systems, opposition to tinkering with net metering ...

An object we thought belonged to the most common category of planet in the galaxy has turned out to be something we've never seen before.