Science ❯ Astronomy

Celestial Mechanics

Orbital Dynamics Comets Trajectory Analysis Lunar Phases Gravitational Interactions Solar System Gravitational Forces Eclipses Planetary Orbits Earth-Moon System Gravitational Effects Trajectory Moon Phases Moon Asteroids Lunar Influence Earth's Orbit Moon's Orbit Trajectories Earth-Moon-Sun Alignment Earth-Moon-Sun System Planetary Motion Comet Trajectories Earth's Rotation Moon's Influence Gravity Assists Earth-Moon Interaction Planetary Systems Earth-Sun Relationship Hyperbolic Trajectories Syzygy Gravity Assist Gravitational Assists Moon-Earth Interaction Earth-Moon-Sun Relationship Moon Orbit Earth-Moon-Sun Relationships Perihelion Eclipse Mechanics Star Interactions Orbital Stability Trajectory of Comets Earth Rotation Light and Shadow Moon Orbital Dynamics Lunar Effects Orbital Positions Influence of Celestial Bodies Temporary Natural Satellites Asteroid Orbits Retrograde Motion Gravitational Influence Binary Stars Eclipse Phenomena Kuiper Belt Constellations Star Systems Lunar Motion Eclipse Patterns Lunar Studies Lunar and Solar Interactions Orbital Predictions Orbital Calculations Orbital Resonance Gravitational Maneuvers Orbital Distance Solar System Objects Gravitational Anomalies Meteor Composition Meteor Streams Meteor Showers Orbit Acceleration Interstellar Objects Lunar Events Orbital Trajectory Sun Position Non-Gravitational Forces 3I/Atlas Oort Cloud Three-Body Problem Jupiter YORP Effect Non-Gravitational Accelerations Orbital Trajectories Planet Formation Lunar Orbit Eclipse Types Planetesimals Orbital Mechanics Timekeeping Orbital Periods Quasi-Moons Gravitational Dynamics Asteroid Dynamics Asteroid Impact Eclipse Cycles Lunar Nodes Gravitational Capture Moon Orbits

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

Years of transit‑timing data indicate the planets are inflated by stellar heating, with atmospheres already escaping.

Hubble Data Tie Betelgeuse’s 6-Year Variations to Hidden Companion’s Gas Wake

Quadrantid Meteor Shower Peaks Under Bright Supermoon

Winter Solstice Arrives Dec. 21 as Sunsets Begin to Shift Later

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

Interstellar Comet 3I/ATLAS Nears Dec. 19 Earth Flyby as Study Flags Strong Jupiter Perturbation

Researchers Identify Compact 'Inner Kernel' in the Kuiper Belt at 43 AU

Radio Detection From 3I/ATLAS Bolsters Natural-Comet Explanation

China’s Tianwen-1 Releases Close Images of Interstellar Comet 3I/ATLAS as JPL Flags Non‑Gravitational Acceleration

Ancient White Dwarf Caught Accreting Debris From a Shattered Rocky World

Beaver Supermoon Will Be 2025’s Largest Full Moon on Nov. 5

Astronomers Confirm 2025 PN7 as Earth’s Seventh Quasi-Satellite

NASA Confirms Tiny Asteroid 2025 PN7 as Earth’s Quasi-Moon Through 2083

Orionid Meteor Shower Peaks Oct. 21–23 Under New-Moon Skies

New Analysis Finds Asteroid Belt’s Active Mass Shrinking by 0.0088% Per Million Years

Study Flags Hidden Venus Co-Orbitals That Could Drift Into Earth-Crossing Paths

Study Flags Hidden Venus Co-Orbital Asteroids as Long-Term Earth Hazard

Saturn Reaches Opposition Sunday With Rare Titan Shadow Transit Overnight

Skyscraper-Size Asteroid 2025 FA22 Makes Safe Earth Flyby on Sept. 18

The Moon Is Drifting Farther From Earth by 3.8 Centimeters a Year