Science ❯Astronomy ❯Solar System

Planetary Formation

Orbital Dynamics Planet Nine Hypothesis Gravity Effects Kuiper Belt Objects Origins of Water Saturn Collisions Bennu Protoplanetary Disk Protoplanetary Disks Gas Planets Rocky Planets Asteroid Origins Asteroid Research Planetary Structure Asteroids Outer Planets Lunar Evolution Chemical Composition of Planets Gravitational Interactions

Study Pinpoints a Dry Proto‑Earth Within 3 Million Years, Bolstering Theia Water‑Delivery Theory

High-precision 53Mn–53Cr dating indicates a rapid, volatile-poor start that favors a Moon-forming impact as the source of life’s ingredients.

Discovery of 'Ammonite' Narrows Search for Planet Nine

Astronomers Observe First Solid Condensation of Rocky Planet Precursors Around Distant Star

Study Reveals Jupiter’s Early Size and Magnetic Strength Far Surpassed Current Levels

NASA Confirms Uneven Lunar Interior with New Gravity Map

NASA's Lucy Spacecraft Prepares for Close Flyby of Asteroid Donaldjohanson

Saturn's Moon Count Soars to 274 with Discovery of 128 New Satellites

Ancient Interstellar Object May Have Reshaped Solar System's Planetary Orbits

Saturn’s Rings May Be as Old as the Planet, Study Suggests

Interstellar Object May Have Shaped Planetary Orbits in Early Solar System

New Kuiper Belt Discoveries Challenge Solar System Formation Theories

JWST Observes Key Phase in Planetary Formation