Solar System

NASA's Lucy spacecraft serendipitously found a small moonlet orbiting the mission's asteroid target Dinkinesh. Scientists named it Selam, and have now learned that Selam is a cosmic toddler.

Scientists suggest lunar astronauts can stay fit by running sideways within a Wheel of Death.

NASA's PREFIRE mission will deploy a pair of satellites from twin launches aboard Rocket Lab's Electron rockets that will contribute to climate change studies in the Arctic and Antarctica.

NASA has selected nine companies to develop concepts that could agency science missions to Mars down the road.

A new AI software has helped identify more than 27,000 asteroids in our solar system that had been overlooked in telescope images.

As the sun reaches solar maximum, Mars spacecraft are preparing to study the effects of increased radiation bombardment and how solar storms may impact future crewed missions to the Red Planet.

During the winters of 2016 and 2017, a hole the size of Switzerland opened in the middle of Antarctica's sea ice. And scientists just figured out how it came to be.

Yellowstone's lake's ice cover has remained unaffected by increasing temperatures due to increased snowfall. But this could make it vulnerable to a sudden shift.

Explore the impact of a near X-class solar flare, registering M9.5, as it disrupts radio signals across the Pacific. The eruption was sunspot AR3654's most powerful yet.