Jupiter might be having a change of heart. Literally. New simulations suggest that Jupiter's rocky core has been liquefying, melting, and mixing with the rest of the planet's innards. With this ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Deep inside Jupiter, hydrogen turns into a liquid called “liquid metallic hydrogen,” which acts like a metal. This helps create Jupiter’s strong magnetic field.

Recent flybys of the fiery world refute a leading theory of its inner structure—and reveal how little is understood about ...

Jupiter is about to go under the microscope, sort of. When NASA's Juno spacecraft reaches orbit around Jupiter on July 4, it will embark on a nearly 20-month study of the giant planet. So what ...

Inside Jupiter: Layers of Mystery. Despite this significant advancement, many questions remain about Jupiter's deep interior. Past missions like Galileo and Juno revealed complex internal layers, ...

Jupiter is a bright enigma in our Solar System, with 2.5 times the mass of all the other planets combined, the oldest age by far, and a composition that some argue is closer to a star than a ...

Some 1300 Earths could fit inside Jupiter! Jupiter’s mass is two-and-a-half times of all the other planets in our solar system ... Jupiter does not have ties with the barycenter of the sun.

LITTLETON, Colo. — I've never been so close to something that is going so far away. The Jupiter-bound Juno spacecraft is entering a series of vital tests before its planned liftoff aboard an ...