Story perspectives
New Research Reveals Asteroid Deflection Risks and Solutions
9/13/2025
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Story summary
- Research at the EPSC-DPS2025 meeting reveals the "gravitational keyhole" effect, which may redirect asteroids back toward Earth during deflection missions.
- Rahil Makadia from NASA stresses the importance of precise impact point selection to mitigate collision risks.
- NASA's DART mission successfully changed Dimorphos's orbit in September 2022, demonstrating effective asteroid deflection.
- ESA's Hera mission will study the DART impact in December 2026.
- Makadia's team created probability maps to identify safe impact zones, supported by ground-based observations.
