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Orbital Dynamics

Trajectory Analysis Comet Trajectories Elliptical Orbits Cometary Orbits Gravitational Interactions Interstellar Objects Hiperbolic Trajectories Temporary Satellites Hyperbolic Orbits Perihelion

Venus and Jupiter to Form Tight Evening Conjunction on June 8–9

The pairing is a line‑of‑sight show that will demand clear western horizons and precise timing for good views.

Study Suggests Nereid Is Neptune’s Last Intact Original Moon

Asteroid 2026 JH2 Makes Safe 91,600-Kilometer Flyby of Earth

JWST Finds Heavy, Water-Rich Atmosphere on Mini-Neptune in Rare Hot-Jupiter System

Study Reports Tenuous Atmosphere on a 500-Kilometer Kuiper Belt World

Hubble Spots First Known Comet Spin Reversal

NASA’s DART Test Measurably Shifted an Asteroid System’s Solar Orbit, Studies Find

Six-Planet Parade Lines Up Along the Ecliptic as Jupiter Shines Brightest

Kepler Data Reveal Earth-Size Planet Candidate HD 137010 b Near Star’s Habitable Edge

NASA Clarifies "Second Moon" Hype: 2025 PN7 Is a Quasi‑Satellite, Not an Earth Moon

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

Interstellar Comet 3I/Atlas Nears Dec. 19 Perihelion on Safe, Distant Track

UN Network Launches Global Campaign to Track Interstellar Comet 3I/ATLAS Before Dec. 19 Flyby

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

Interstellar Comet 3I/ATLAS Inside 300 Million Kilometers, Set for 269 Million-Kilometer Earth Flyby on Dec. 19

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

NASA Confirms 3I/ATLAS Is a Comet as Solar Plasma Strike Forecast for Nov. 21

Breakup of Comet C/2025 K1 (ATLAS) Confirmed Ahead of Nov. 25 Earth Flyby

Interstellar Comet 3I/ATLAS Brightens and Accelerates as Global Observers Ready for Dec. 19 Flyby

Ancient White Dwarf Caught Accreting Debris From a Shattered Rocky World