Jupiter's Great Red Spot is a giant storm, the largest known in our solar system. It's been seen through earthly telescopes for more than 300 years. Lately, it's been showing signs of breaking apart. Is this the beginning of the end for the beloved Spot?

New observations by the ALMA telescope in Chile have revealed a never-before-seen disk of cool, interstellar gas wrapped around Sagittarius A*, the giant black hole at the center of our galaxy.

NASA's Spitzer Space Telescope was used to create this large mosaic of stars and dust clouds in the direction of the constellation Cepheus. Here are multiple star clusters - young, middle-aged and older - born from the same dense clumps of gas and dust.

Mars is a desert world, with sand dunes similar to those on Earth. But the processes that create them can be quite different from those on our planet, according to a new study from the University of Arizona.

"Mud ball" meteorites - full of clays, organics and water - are unique among space rocks. And a lot of them fell in April 2019 on a small town in Costa Rica, much to the delight of scientists.

Late last month, the Curiosity rover picked up wonderful images of noctilucent - or "night-shining" - clouds in the Martian sky. Plus - if you're at a high latitude on Earth now - it's time to start looking for these clouds.

Will Elon Musk's plan to launch 12,000 Starlink satellites - aimed at bringing internet access to the world - interfere with astronomy? Astronomer Guy Ottewell ponders this question.

A hundred years ago today, Einstein’s theory of gravity was first put to the test when Arthur Eddington observed light “bending” around the sun during a solar eclipse. A century later, scientists are still searching for the limits of the theory.

Researchers estimate that if the massive ice deposits melted, they'd cover the planet in 5 feet (1.5 meters) of water.

A study of dust in the disk around the star HD 163296 suggests we're glimpsing a gravitational interaction between giant planets and much-smaller objects, the future asteroids and comets of this newly forming solar system.