Under extreme planetary conditions, water turns into a strange, electricity-conducting solid hidden deep inside giant planets.

When you buy through links on our articles, Future and its syndication partners may earn a commission. A composite image of Uranus (left) and Neptune from Hubble Space Telescope observations. | Credit ...

New images released Wednesday from NASA's James Webb Space Telescope are revealing Neptune, and the planet's hard-to-detect rings, in a fresh light. "It has been three decades since we last saw these ...

Astronomers have discovered a bizarre object in the outer solar system, 2020 VN40, that dances to Neptune’s gravitational beat in a never-before-seen rhythm. It’s the first of its kind, orbiting the ...