Near-Earth Asteroids as of September 2025

Each month, NASA’s Planetary Defense Coordination Office releases a monthly update featuring the most recent figures on NASA’s planetary defense efforts, near-Earth object close approaches, and other timely facts about comets and asteroids that could pose an impact hazard with Earth. Here is what we’ve found so far. Updated: September 11, 2025

NASA’s Planetary Defenders Documentary Premieres April 16

NASA is bringing the world of planetary defense to the public with its new documentary, “Planetary Defenders.” What would humanity do if an asteroid were headed for Earth? The documentary takes viewers inside the real-life efforts of scientists and engineers working to detect, track, and mitigate potential asteroid threats. Featuring firsthand accounts from experts on […]