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Orbital Mechanics

Comet Trajectories Satellite Orbits Gravitational Interactions Comet Orbits Low-Earth Orbit Hyperbolic Orbits Eccentricity Gravitational Effects Satellite Dynamics Space Junk Cometary Orbits Planetary Orbits Trajectory Analysis Geostationary Orbit Long-period Comets Lunar Orbit 3I/ATLAS Trajectory of Comet 3l/ATLAS Orbital Solution of 3I/ATLAS Hyperbolic Trajectories Tilted Orbits Close Approaches Space Debris Hiperbolic Orbits Space Pollution Kometenbahnen Hiperbolic Trajectories Kepler's Laws C/2025 A6 (Lemmon) Satellite Reentry Orbital Eccentricity Trajectory Changes Debris Clearing Planetary Alignments Space Debris Mitigation Perihelion and Aphelion Sungrazers Eclipsing Binaries Elliptical Orbits Oort Cloud Sun-skirting Comets Sun-Skirting Orbits Rocket Launches Moon Classification Gravitational Slingshot Planetary Motion Retrograde Orbits Orbital Resonance Interstellar Travel

Crescent Moon Brushes Past Saturn Tonight, With Neptune Nearby

The pairing offers one of the last convenient evening looks at Saturn before it sinks toward the Sun’s glare.

SpaceX Targets Wednesday Vandenberg Launch of 27 Starlink Satellites on Falcon 9’s 30th Flight

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

Astronomers Map Orbit and Mass of Stormy Brown Dwarf Around Nearby Red Dwarf

Comet Lemmon Brightens Ahead of Oct. 20–21 Peak, Now Near the Big Dipper

Starlink Satellites Are Reentering Daily, Raising Safety and Environmental Questions

SwRI Says Interstellar Comet Flybys Are Achievable as 3I/ATLAS Defies Expectations

SpaceX Debuts New Falcon 9 as Starlink Launch Kicks Off Crowded Week

Rubin Observatory Captures Pre-Discovery Video of Natural Interstellar Comet 3I/ATLAS

First Trans-Neptunian Object Found in 10:1 Neptune Resonance

China Likely Completes First Autonomous Refueling of Satellites in Geostationary Orbit

Active Interstellar Comet 3I/ATLAS Set for Safe Solar System Passage