Science ❯ Astrophysics

Orbital Mechanics

Lunar Orbit Perigee Lunar Phases Asteroid Orbits Trajectory Analysis Low-Earth Orbit Elliptical Orbits Moon Orbit Moon Phases Satellite Technology

Jupiter-Mass Companion Detected Orbiting Brown Dwarf in Nearby System

The claim forces astronomers to seek astrometry or direct imaging to measure the object's true mass and orbit.

Long-Tracked Near-Earth Object Reclassified as Comet After Missing Radar Detection

FCC Authorizes Reflect Orbital’s Single Sunlight‑Beaming Satellite

Apophis Declared Safe for 2029 Flyby as Global Visibility Maps Are Released

SpaceX Schedules Multiple Falcon 9 Starlink Launches as China Debuts Long March 12B

NASA Confirms August 2, 2027 Total Solar Eclipse With Unusually Long Totality

Study Maps 153- and 226-Day Round-Trip Paths Between Earth and Mars

Apophis Will Sweep 20,000 Miles From Earth in 2029 Close Pass, NASA Says

China Expands Qianfan and Guowang With Back-to-Back Long March Launches

Atlas 5 Lifts 29 Amazon Leo Satellites, Setting Payload Record

SpaceX Set to Launch Transporter-16 Rideshare from Vandenberg with 119 Payloads

ESA Unveils JUICE Video of Interstellar Comet 3I/ATLAS

SpaceX Targets Vandenberg Falcon 9 Launch for 25 Starlink Satellites

SpaceX Launches 29 Starlink Satellites as Falcon 9 Booster Lands on 27th Flight

Webb Data Confirms Asteroid 2024 YR4 Will Safely Fly Past the Moon in 2032

SpaceX Launches 29 Starlink Satellites From Cape Canaveral on Sunday Night

India’s AgniKul Pitches Orbital AI Data Centers as Skepticism Grows Over Space Compute

Ariane 64 Debuts With 32 Amazon Leo Satellites on First Commercial Launch

TESS Reobserves Interstellar Comet 3I/ATLAS After Safe-Mode Gap

Russia Finalizes Launch Plan for New Orbital Station With Proton‑M Built for First Module