Science ❯ Astrobiology

Planetary Defense

Impact Risk Assessment Near-Earth Objects Risk Assessment Kinetic Impact Deflection Monitoring Techniques Impact Mitigation Asteroids Asteroid Composition Impact Research Hazard Assessment Human-Made Debris Impact Hazard Mitigation Asteroid Monitoring Human Colonization of Mars Impact Studies Space Exploration

Hayabusa2 Completes Close Flyby of Asteroid Torifune

The pass validated navigation techniques relevant to planetary defense.

Simulations Put 2024 YR4’s 2032 Lunar-Impact Odds at About 4 Percent

Skyscraper-Size Asteroid 2025 FA22 Makes Safe Earth Flyby on Sept. 18