On August 5, 2026, an uncontrolled fragment of SpaceX's Falcon 9 rocket is expected to impact the lunar surface. Although the collision is the result of a deviation from the original mission plan, the astronomical community is attempting to turn the event into a unique scientific experiment.
Origin of the Object and Trajectory
The problematic object is the upper stage of a Falcon 9 rocket, which in January 2025 successfully launched two private modules—Blue Ghost and Hakuto-R—to the Moon. According to space safety protocols, this stage was supposed to burn up in Earth's atmosphere, but instead remained in an unstable high orbit. The object's trajectory was first calculated by amateur astronomer Bill Gray.
According to him, predicting the movement of such structures is a challenge, as the 4.9-ton body is influenced not only by gravitational forces but also by solar radiation. Current calculations show that the object is moving toward the Moon at a speed of over 8,600 km/h, and the expected impact energy will be equivalent to the explosion of three tons of TNT.
Scientific Observation of the Impact
The collision is expected to occur near the Einstein crater, almost at the very edge of the lunar disk. Although direct detection of the flash is difficult due to the lighting of the area, the impact position allows the cloud of dust and debris to spread against the dark background of space, which will make it visible.
Various means have been mobilized for the observation: NASA's Lunar Reconnaissance Orbiter will photograph the area before and after the impact, and the South Korean satellite Pathfinder will attempt to capture the moment of collision itself. 23 astronomers have already called upon colleagues and amateurs in North and South America to join the observations.
Significance for Future Lunar Missions
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As plans for building permanent lunar bases and research stations progress, the management of orbital debris is becoming critically important. Assessing the damage and dynamics of this impact will help scientists develop more effective systems for tracking hazardous objects and protecting future lunar assets from unwanted space collisions.