New research suggests that Jupiter, the largest planet in our solar system, was once even bigger—about twice its current size—and had a magnetic field 50 times stronger than it does today. This ...

Scientists are intrigued after spotting a highly unusual celestial object lurking at the very edge of our solar system.

There’s a new object in the distant reaches of our solar system, and it might just offer clues to a long-standing cosmic ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

Scientists focused on Jupiter's little moons Amalthea and Thebe. Their peculiar orbits didn't quite fit with Jupiter's ...

NASA's JWST has uncovered solid water ice in a distant star system, reshaping our understanding of life's building blocks and ...

A new report on the U.S.'s readiness in the face of threats from space has revealed concerns about our vulnerability to major ...

Astronomers have long been intrigued by the makeup of the asteroid belt’s largest body. When it was first spotted in 1801, ...

The mystery of how planets and icy objects formed in the farthest reaches of our solar system just took an exciting turn. A ...

How can artificial intelligence (AI) be used to advance mapping and imaging methods on other planets? This is what a study ...

The ancient event, over 500 times stronger than any modern storm, would be devastating were it to happen today.

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, researchers say.