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Study Lays Out Nuclear and Kinetic Options to Prevent Possible 2032 Moon Impact by Asteroid 2024 YR4

A new preprint by NASA‑affiliated researchers outlines destruction scenarios to lower lunar ejecta risks to satellites and crewed platforms.

Overview

  • Latest estimates put the chance of a lunar strike at roughly four percent in December 2032, with Earth impact effectively ruled out.
  • Modeling suggests a Moon impact by the ~60‑meter object could loft debris into Earth orbit, threatening the ISS, communications satellites and planned missions.
  • The team favors “robust destruction” approaches, including a kinetic breakup or a nuclear standoff detonation, with calculations citing about a 1‑megaton yield at ~85 meters.
  • A classical deflection is deemed impractical given large mass uncertainty and a tight launch window in mid‑2028, while an ideal reconnaissance mission would need to launch by late 2028.
  • The proposals are preliminary and not peer‑reviewed, would require legal and funding decisions as well as international coordination, and trajectory refinements are expected with new observations around 2028.