Overview
- NASA confirmed that a discarded second stage from a Falcon 9 impacted the Moon on Wednesday after it spent more than a year in an uncontrolled Earth–Moon trajectory.
- Ground telescopes in Chile reported a brief impact cloud with sodium and lithium spectral lines and agencies say the event posed no danger to Earth.
- The booster is estimated at about four metric tons and struck at roughly 2.43 km/s, a blow scientists expect to have produced a crater measured in tens of meters across.
- The Lunar Reconnaissance Orbiter, South Korea’s Danuri/ShadowCam and other orbiters will image the site before and after impact to map the crater and ejecta and refine impact models.
- Researchers say the case highlights gaps in tracking and disposal rules for high-energy cislunar stages and will inform procedures to protect future crewed and commercial lunar operations.