SpaceX rocket set to crash into moon at 5,400 mph Wednesday

A spent SpaceX rocket, abandoned in space for more than a year after delivering lunar landers, is about to collide with the moon. The upper stage—a cylindrical piece of machinery forty feet long and weighing around ten thousand pounds—will strike the lunar surface on Wednesday at 5,400 miles per hour, seven times the speed of sound. Space tracking expert Bill Gray has calculated the impact will occur near Einstein Crater on the moon's sunlit western edge, releasing energy equivalent to three tons of TNT and carving out a crater roughly ninety feet across and sixteen feet deep.

The rocket launched on January 15, 2025, carrying two private lunar landers. One of them, Firefly Aerospace's Blue Ghost, achieved the first fully successful private landing on the moon. The other, built by Japan-based ispace, crashed. Once their payloads were delivered, the rocket stage drifted into an unstable orbit—a trajectory that could have been prevented. Space experts note that nudging the upper stage into orbit around the sun would have avoided the collision entirely. But that step was never taken, and now the moon will absorb the impact.

This will be the second known instance of a rocket accidentally striking the moon. A Chinese rocket segment created a pair of craters on the lunar far side in 2022. The difference this time is visibility. Because the SpaceX rocket will hit the near side of the moon—the face we see from Earth—astronomers and space agencies will have a rare opportunity to observe the aftermath. The impact flash itself will likely be too faint to see, lasting less than a second. But the ejected material—dust, rock, and debris—will stream outward for several miles and remain visible through telescopes for tens of minutes. The moon's low gravity and airless environment mean the debris will linger, undisturbed by wind.

Benjamin Fernando, a researcher at Los Alamos National Laboratory, is encouraging both professional astronomers and amateur observers to document what they see. NASA's Lunar Reconnaissance Orbiter and South Korea's Danuri lunar orbiter will capture before-and-after photographs of the impact site. Danuri will pass within a mile or two of the SpaceX rocket just two minutes before collision, positioning it to gather crucial data. The eastern portions of the United States and Canada, along with much of South America, will have the best viewing angles during the early morning hours.

The collision matters not because it poses an immediate threat, but because it illuminates a growing problem. Space is becoming crowded. More rockets, satellites, and debris are accumulating in orbit, and the moon is becoming a destination again after decades of relative quiet. The United States and China are racing to land astronauts on the lunar surface within the next few years. SpaceX and Blue Origin are competing to build the landers. Private companies are launching their own missions. With this surge in lunar activity comes a new urgency: understanding how to track, manage, and mitigate the hazards posed by colliding objects.

Fernando sees the SpaceX impact as a learning opportunity. By observing a well-tracked collision with a known object, scientists can better understand the mechanics of debris impacts and refine their models for predicting damage. This knowledge will be essential when astronauts and robotic bases occupy the moon. A similar uncontrolled impact near a future lunar settlement could pose a genuine threat. Jonathan McDowell, a retired astrophysicist, put it plainly: the Wednesday collision will cause no problems. But in a future where humans live and work on the moon, leaving rocket stages in chaotic orbits becomes a liability that cannot be ignored.

For now, the moon waits. Wednesday morning, the SpaceX rocket will arrive at Einstein Crater traveling faster than any commercial aircraft, and in an instant, it will become part of the lunar landscape. Scientists will watch, measure, and learn. The data they gather will help shape how humanity manages its growing presence in space.