Science ❯ Astronomy ❯ Planetary Defense

Near-Earth Objects

Impact Analysis NEOWISE Mission NEOWISE Contributions Impact Events Orbital Tracking DART Mission Asteroid Families IAWN Asteroid Day Risk Assessment

NASA Reaffirms 3I/ATLAS Is a Comet as New Images Intensify Scrutiny Ahead of December Flyby

NASA maintains it is a comet posing no risk to Earth.

New Study Flags Possible Taurid ‘Resonant Swarm’ Risk in 2032 and 2036

Asteroid 2024 YR4 Poses No Threat to Earth but Holds 4.3% Chance of Moon Impact

Astronomers Detect Smallest Asteroids in Main Belt Using Infrared Data

NASA Decommissions NEOWISE After 15 Years of Asteroid Detection

NASA's DART Mission Yields Crucial Insights on Asteroid Deflection