Jupiter, the largest planet in our solar system, is so heavy that the shared center of mass between it and the Sun sits just ...

The outer solar system once seemed like a quiet backwater. But a glut of tiny, strange moons with unruly orbits are coming ...

When the sun eventually expires and swells to engulf Earth, might the remnants of landfill and deeply buried nuclear waste be ...

Parker's instruments are gathering measurements while the Sun is in an active phase of its 11-year solar cycle, a period ...

As it turns out, the conditions that set Venus and Jupiter up for their conjunctions in the sky are the same that are ...

Scientists studying 50 years of solar data warn Earth may be entering a heightened risk period for rare “superflares” capable of disrupting technology worldwide.

A village in Kent is home to what is thought to be the world's largest scale model of the solar system and beyond, created to ...

An artist's conception showing a planetary smash-up between a Moon-sized object and a Mercury-sized object. (NASA/JPL-Caltech ...

The ingredients that help make a planet livable did not necessarily come from where many scientists once thought. A new ...

A rare meteorite found in the Sahara Desert may be evidence of a long-lost "protoplanet" that formed in the early solar ...