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Planetary Defense

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Newly Found Asteroid Inside Venus Completes a 128-Day Orbit, Second-Fastest on Record

Astronomers warn that near-Sun asteroids can evade routine night surveys.

NASA Team Weighs Nuclear Option to Avert Possible 2032 Lunar Strike by Asteroid 2024 YR4

ESA’s Apophis Probe on Track as China Proposes 2029 Flyby

LICIACube Images Show 16 Million-Kilogram DART Ejecta That Drove Dimorphos’ Deflection

DART Ejecta Analysis Reveals Boulder Clusters Could Tilt Dimorphos’s Orbit

Asteroid 2024 YR4 Now Has 4.3% Chance of Striking the Moon

Asteroid 2024 YR4 Impact Odds on Moon Rise to 4.3%

ESA’s Flyeye Telescope Secures First Light, Begins Installation in Sicily