Science ❯Astronomy ❯Astrophysics

Orbital Mechanics

Gravitational Interactions Gravitational Effects Space Junk Comet Orbits Cometary Orbits Eclipsing Binaries Comet Trajectories Long-period Comets Geostationary Orbit Elliptical Orbits Oort Cloud Sun-skirting Comets Sun-Skirting Orbits Rocket Launches Moon Classification Satellite Dynamics Satellite Orbits Gravitational Slingshot Planetary Orbits Retrograde Orbits Debris Clearing Lunar Orbit Space Debris Mitigation Perihelion and Aphelion Sungrazers

3I/ATLAS Identified as Third Interstellar Visitor With Cometary Activity

Astronomers are studying its vaporizing coma to probe extrasolar chemistry ahead of its close solar passage in late October.

Retrograde Planet Confirmed in Tight Binary System with White Dwarf

Astronomers Identify Potential Planet Nine Candidate from Archival Infrared Data

Astronomers Identify Prime Candidate for Hypothetical Planet Nine

China Completes First Earth-Moon Navigation Constellation After Satellite Rescue

US Space Force Warns of China's Advanced Satellite Maneuvers

SpaceX Rocket Debris Crashes in Poland After Uncontrolled Reentry

Rare Sun-Skirting Comet Visible in Southern Hemisphere Skies This Week

Comet C/2024 G3 Offers Rare Viewing Opportunity, But Visibility Remains Challenging

Comet G3 ATLAS Approaches Perihelion With Potential for Exceptional Brightness

Astronomers Discover Triple Star System with Record-Breaking Orbital Period

Ancient Comet Makes Rare Return, Visible in October Skies

Rare Comet Tsuchinshan-ATLAS Graces Earth's Skies After 80,000 Years

Chinese Rocket Breaks Apart, Creating Significant Space Debris

Astroscale's ADRAS-J Mission Achieves Key Milestone in Space Debris Removal