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Planetary Formation

Exoplanets Mars Formation Pluto and Charon Planet Y Planetary Evolution Cosmic Fossils Solar System Origins Impact Craters Planetary Destruction Cosmic Dust

Psyche Captures Rare Crescent Images as Mars Flyby Boosts Trajectory

Conserving ion propellant, the gravity assist keeps Psyche on course for a planned 2029 arrival at asteroid 16 Psyche.

JWST Finds Heavy, Water-Rich Atmosphere on Mini-Neptune in Rare Hot-Jupiter System

Uranus’s Outer Rings Yield First Spectra, Pointing to Icy Mab Source and Possible Hidden Moonlets

Astronomers Tie Distant Star’s Chaotic Fading to Evidence of a Planetary Collision

New Study Links Titan Moon Merger to the Birth of Saturn’s Rings

Astronomers Find Rare ‘Inside-Out’ Planetary System With Rocky Outer World

Late-Blooming Rocky World, JWST Chemistry Recast Planet Formation

Inside-Out Exoplanet System Around Red Dwarf LHS 1903 Challenges Formation Models

Rocky Outer Planet in LHS 1903 System Upends Planet-Formation Models

ALMA’s ARKS Survey Delivers Sharpest-Ever Map of 24 ExoKuiper Belts

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

Study Challenges 'Ice Giant' Label for Uranus and Neptune

SPHERE Survey Delivers 51 Resolved Debris Disks, Revealing Planet-Shaped Rings and Prime Follow-Up Targets

Study Traces Moon-Maker Theia to the Inner Solar System

Science Study Points to Inner‑Solar‑System Origin for Moon‑Forming Impactor Theia

Princeton Study Points to Possible Distant ‘Planet Y’ Shaping Kuiper Belt Orbits

Seismic Reanalysis Finds Mars’ Mantle Packed With Ancient Impact Debris

Nature Study Confirms the Moon Has a Solid Inner Core

Psyche Spacecraft Snaps Distant Earth–Moon Portrait During Instrument Checkout

Chandra Observations Reveal Rapid Atmospheric Loss on Exoplanet TOI 1227b