Planetary Defense at NASA
In 2016, NASA established the Planetary Defense Coordination Office (PDCO) to manage the agency's ongoing mission of finding, tracking, and better understanding asteroids and comets that could pose an impact hazard to Earth. Here you can stay informed about the PDCO, NASA's Near-Earth Object (NEO) Observations Program, and upcoming planetary defense flight missions, including NASA'S NEO Surveyor mission.
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Planetary Defense by the Numbers
Monthly update with latest metrics on NASA's search for NEOS.
Asteroid Watch
News and updates from NASA's Planetary Defense Coordination Office.
NASA Strategy for Planetary Defense
NASA's strategy for safeguarding Earth from potentially hazardous NEOs.
NEO Surveyor
An infrared space telescope designed to accelerate NASA's search for NEOs.
Near-Earth Asteroid 2024 YR4
NASA continues to monitor asteroid 2024 YR4’s orbit, which has a very small chance of Earth impact in 2032.
Planetary Defenders
NASA’s Planetary Defenders is a gripping documentary that will delve into the high-stakes world of asteroid detection and planetary defense by journeying alongside NASA’s dedicated team of scientists, astronomers, and engineers who discover, track, and monitor near-Earth asteroids to safeguard Earth from potential impacts. Coming April 2025 to NASA+ and other streaming platforms.
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