Hubble Space Telescope imagery Neptune has revealed that the planet's clouds are disappearing. Credit: NASA Goddard Space ...

Now, a new Nature study points to an answer by catching four planets at a stage most systems never show us: The awkward, ...

The James Webb Space Telescope's Near-Infrared camera (NIRCam) captured stunning imagery of Neptune. It is the "clearest view ...

A test model of the Perseverance rover, designed to explore the surface of Mars, sits in a garage at NASA’s Jet Propulsion ...

Planets usually stay close to their host stars, tracing steady paths shaped by gravity. Yet some planets break free and drift ...

In the Solar System, there’s only one other gas giant: Saturn, currently visible to the west in the early evening. Leaving ...

A few months later, in April 1986, a sudden power surge during a reactor systems test caused a meltdown of the Chernobyl ...

The moon and sun share top billing in 2026. Kicking off the year's cosmic wonders is the moon, drawing the first astronauts ...

Bright full moons, dazzling meteor shower displays and remarkable total eclipses will give stargazers plenty of reasons to ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...