Science ❯ Physics

Orbital Mechanics

Celestial Mechanics Elliptical Orbits Trajectory Analysis Asteroid Dynamics Space Debris Aerodynamics Atmospheric Drag Earth-Moon System Satellite Technology Debris Tracking Impact Probability Low Earth Orbit Space Debris Hazards Three-Body Problem Spacecraft Orbits Satellite Tracking Collision Probability Geostationary Transfer Orbit Oberth Effect Simulation Models Maneuvers Retrograde Orbits Trajectory Calculations Spacecraft Trajectory Perihelion Lunar Orbit Spacecraft Dynamics Hyperbolic Orbits Analemma Inclination Angles Re-entry Altitude Adjustment Satellite Deployment Impact Events Asteroid Orbits

Katalyst Picks Pegasus XL for Mid-2026 Launch to Reboost NASA’s Swift Observatory

Katalyst’s mission hinges on Pegasus’s ability to reach Swift’s low‑inclination orbit within a fixed‑price, mid‑2026 window.

New Mapping Method Targets Safer Asteroid Strikes to Avoid Gravitational Keyholes

New Spectra Show 3I/ATLAS Is a Carbon‑Chain–Depleted Interstellar Comet With Weak CN Emission

Hubble Captures Coma of Interstellar Comet 3I/ATLAS as Experts Uphold Natural Origin