Science ❯ Astrophysics

Celestial Mechanics

Orbital Dynamics Trajectory Analysis Lunar Phases Comet Dynamics Eclipse Mechanics Comet Trajectories Non-Gravitational Acceleration Interstellar Objects Cometary Dynamics Trajectory

Hubble Spots First Known Comet Spin Reversal

Uneven gas jets likely flipped the small comet's spin.

August 2, 2027 Total Solar Eclipse Will Be the Longest of the Century

Study Confirms DART Nudged Asteroid Pair’s Orbit Around the Sun

JWST Data Rules Out 2032 Lunar Impact by Asteroid 2024 YR4

ALMA Reveals 3I/ATLAS Is Exceptionally Methanol‑Rich, Indicating a Heterogeneous Interstellar Comet

Total Lunar Eclipse Turns Moon Red Overnight Across the Pacific, East Asia and the Americas

JUICE Releases Best-Yet Image of Interstellar Comet 3I/ATLAS as Data Flow Begins

Near-Full Moon Aligns Over Kaaba Tonight in Rare Lunar Culmination

AI and Crowd Sleuths Home In on Rival Sites for the Long-Lost Luna 9 Lander

February–March Sky Guide: Ring of Fire on Feb. 17, Six‑Planet Lineup on Feb. 28, Blood Moon on Mar. 3

SPHEREx Detects 20-Fold Post-Perihelion Surge in Interstellar Comet 3I/ATLAS

First Comet of 2026, C/2026 A1 (MAPS), Is on Course to Plunge Into the Sun on April 4

Radio Search Finds No Signal From Interstellar Comet 3I/ATLAS as Hubble Images Twin Jets

Sun-Facing Tail in Interstellar Comet 3I/ATLAS Reveals Wobbling Jets, Suggesting 15.5-Hour Rotation

Hubble Spots Second Debris Cloud at Fomalhaut, Confirming Repeated Planetesimal Collisions

MAVEN Still Silent as Data Point to Unexpected Spin and Possible Orbit Change

Interstellar Comet 3I/ATLAS to Make Safe Closest Approach Friday at 167 Million Miles

Interstellar Comet 3I/ATLAS Approaches Dec. 19 Flyby at 270 Million Kilometers

Hubble and Juice Capture New Views of Interstellar Comet 3I/ATLAS Ahead of Dec. 19 Flyby

Hubble and ESA’s Juice Capture 3I/ATLAS With Active Coma and Twin Tails