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Falcon 9 Upper Stage Strikes Moon Near Einstein Crater

Known mass, speed and trajectory make the event a rare test of impact science and a check on deep‑space tracking and disposal practices.

Overview

  • A discarded SpaceX Falcon 9 upper stage struck the lunar surface near Einstein Crater on Wednesday, Aug. 5, 2026, impacting at about 5,400 miles per hour and weighing roughly 4,000 kilograms.
  • Ground telescopes including the European Southern Observatory’s Very Large Telescope recorded a brief plume with sodium and lithium spectral lines and reported the gas signature lasted five to ten minutes.
  • China’s newly launched Gande‑1 01 debris‑monitoring satellite released video of the collision that the developer said demonstrates its space‑surveillance capability.
  • SpaceX and NASA say the strike was unintentional and driven by solar radiation pressure and gravitational perturbations and that the object posed no hazard to Earth.
  • Scientists are awaiting before‑and‑after imagery from orbiters such as NASA’s Lunar Reconnaissance Orbiter and South Korea’s Danuri to measure the new crater and use the well‑characterized impact to improve crater and ejecta models while highlighting gaps in cislunar tracking and disposal rules.