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Near-Earth Asteroids as of April 2025

NASA Science Editorial Team

Sep 29, 2023

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Infographic titled "Near-Earth Asteroids" by NASA. It presents planetary defense data as of March 31, 2025. A total of 38,067 near-Earth asteroids of all sizes have been discovered. Among them, 873 are larger than 1 kilometer, with an estimated 50 still to be found. 11,229 are larger than 140 meters, with an estimated 14,000 remaining undiscovered. Earth is bombarded daily by about 100 tons of dust and sand-sized particles. In the past 30 days, 16 known near-Earth asteroids passed closer to Earth than the Moon. In the past 365 days, 163 such asteroids were recorded. A total of 485,100,000 observations have been submitted to the Minor Planet Center.

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.

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Last Updated

Apr 02, 2025

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