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Planetary Atmospheres

Chemical Composition Water Loss Transmission Spectroscopy Atmospheric Escape Gas Giants Atmospheric Composition Circumplanetary Disks Chemical Signatures Element Composition Phosphine on Venus Methane Detection Methane Chemistry Gas Composition Water Presence Molecular Analysis Erosion

CHEOPS Reveals 'Inside-Out' Four-Planet System Around Red Dwarf LHS 1903

An outer rocky super-Earth beyond two gas-rich neighbors points to late formation in a gas-poor disk.

Nature Study Weighs Four Young V1298 Tau Planets, Revealing Ultra‑Low Densities

Webb Reveals Silicate Clouds and Moon-Forming Disk in YSES-1 System

Saturn-Sized Exoplanet Orbits Record-Low Mass Star, Challenging Formation Theories