Scientists say they are confident a stray SpaceX rocket segment crashed into the Moon as expected on Wednesday, after drifting off course for about a year following a launch that deployed two lunar landers. Multiple outlets cite reports from U.S. launch-area sources and scientific tracking efforts, saying the rocket’s reentry and impact were anticipated based on its trajectory. The reported impact speed is about 5,400 mph (8,700 kph), but none of the summaries indicates that the moment of collision is directly witnessed. Instead, space-tracking and observational confirmations are described as coming from detection of the aftermath. One account notes that astronomers in Chile used a telescope to observe a debris plume associated with the impact. While some summaries describe the crash as “certain,” they also acknowledge it has not been officially confirmed in the sense of direct observation of the impact itself. Overall, the sources agree that the timing aligns with predictions from orbital tracking, and that telescope observations are used to confirm the event.