Science ❯ Astronomy

Planetary Composition

Rocky Planets Atmospheric Layers Saturn Internal Structure Mantle Composition Exoplanet Characteristics

UCLA Study Proposes Magma Oceans Inside Uranus and Neptune

A computer model reproduces the planets' magnetic, thermal, density measurements, proposing a link to sub-Neptune exoplanets.

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New Models Suggest Uranus and Neptune May Be Far Rockier Than Long Assumed

Saturn's Rings Seem to Vanish in Rare Edge-On Alignment on Nov. 23–24

Four Sub-Earth Exoplanets Confirmed Around Barnard's Star

New Model Reveals Layered Interiors of Uranus and Neptune