A SpaceX Falcon 9 rocket's upper stage collided with the lunar surface in an impact that astronomers worldwide had prepared to witness. Despite advance notice of the collision timing and focused telescope observations, no facility managed to capture direct visual evidence of the strike, which occurred at approximately 5,400 mph.

Researchers at Chile's European Southern Observatory detected chemical signatures—sodium and lithium—that emerged moments after the predicted collision, providing indirect confirmation that the impact happened at the anticipated location. The upper stage, which had been following an erratic trajectory since completing its mission in early 2025, is estimated to have excavated a crater roughly 60 feet across and 12 feet deep. Future satellite imagery from NASA and South Korea's orbital missions will likely provide the first direct photographs of this crater. The incident underscores growing concerns about managing lunar impacts as space activity increases.