Icy moons circling the outer planets may be far more dynamic—and explosive—than they appear. New research suggests that when ...

On February 14, 1990, NASA's Voyager 1 spacecraft took the first family portrait of the solar system! [‘On This Day in Space’ Video Series on Space.com] Voyager 1 was on its way toward interstellar ...

Despite the dramatic name, these alignments aren’t exceptionally rare. The last six-planet parade occurred in January 2025, ...

New spacecraft data from Pioneer, Voyager and Juno show that Jupiter is slightly smaller and more flattened than earlier estimates, refining the planet’s measured size and shape.

New research shows that some frozen moons may hide boiling oceans beneath their icy shells, shaping strange surface features.

Skygazers across Texas and beyond can catch a glimpse of six planets arcing across the night sky this week in a so-called ...

The Next Generation's Wesley Crusher was involved in the death of a fellow Starfleet Academy cadet. But was it murder?

A steady stream of particles forms a huge bubble around the Sun. Now, such a structure has been found around a Sun-like star ...

New research using the James Webb Space Telescope offers the most detailed portrait yet of how auroras form on Uranus.

With the Earth moving between the moon and the sun, its giant shadow changing the moon's reflected glow from ivory to a reddish color.

If you think auroras on Earth are a strange and mesmerizing sight, that's nothing like what occurs on the perplexing world of Uranus.