Science ❯ Astronomy ❯ Astrophysics

Gravitational Effects

Tidal Forces Orbital Mechanics Orbital Dynamics Saturn's Gravity Transit Timing Variations Distance from Sun Public Participation in Science Microlensing Events Time Dilation Celestial Mechanics Planetary Formation Comet Fragmentation Galaxy Interactions Solar System Stability Star Formation Influence of Other Planets Momentum Velocity of Comets Matter and Energy Micro-lensing Events Space Velocity Exomoons Oberth Maneuver Non-gravitational Acceleration Solar Influence Tidal Disruption Perihelion Passage Photon Entanglement Earth-Moon Distance Gravity Assist Maneuvers

Giant Metal-Bearing Cloud Tied to Hidden Companion Explains Months-Long Dimming of Sun-Like Star

Gemini South spectra delivered the first direct map of internal gas motion in such a disk.

Saturn-Mass Rogue Planet Gets First Direct Mass and Distance Measurement

Astronomers Report Tentative Exomoon Around HD 206893 B Using Precision Astrometry

Ancient White Dwarf Caught Accreting Debris From a Shattered Rocky World

Hubble and Infrared Observations Show 3I/ATLAS Is an Active Interstellar Comet

New Gravity-Only Models Propose Mirror Sector and Cosmic Horizon Origins for Dark Matter