Toward the core, though, there's a thick mantle of metallic hydrogen responsible for Jupiter's staggering magnetic field, and the high pressure in the mantle means that the hydrogen atoms have to pack ...

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When NASA’s Juno spacecraft pointed a sensitive instrument toward the belly of the largest planet in the Solar System, it detected something peculiar: A jet hidden deep below Jupiter’s atmosphere. As ...

Hydrogen is the most-abundant element in the universe. It’s also the simplest–sporting only a single electron in each atom. But that simplicity is deceptive, because there is still so much we have to ...

A long-standing mystery about the presence of hydrogen peroxide (H2O2) on Jupiter's icy ocean moon Europa may be closer to being solved. Hydrogen peroxide forms as a byproduct when energetic particles ...

The structure of the planets, including the earth, can be understood best by studying the behavior of matter under very high pressure. Such is the theory of Astrophysicist William Henderson Ramsey of ...