A SpaceX rocket that has been drifting in space for a year and a half is set to crash into the moon on Wednesday, stirring up a debris cloud that could be visible from Earth. The impact raises questions on the future of lunar exploration, including how to protect any future moon bases from space junk.
The rocket set for moon impact is the upper stage of a Falcon 9 that transported a pair of lunar landers. While the landers successfully reached the surface, the rocket was left adrift since it did not have enough fuel to return to Earth or enter a stable orbit.
Weighing 4 metric tons, the rocket is expected to strike the lunar surface at a speed of approximately 5,400 mph—about seven times the speed of sound. Without an atmosphere to slow the projectile down, the impact will cause an explosion equivalent to 3 metric tons of TNT, leaving a crater that’s projected to be up to 27 meters in diameter and 5 meters deep.
The upper stage is expected to hit the surface around 6:34 am UTC on Wednesday, likely making impact near Einstein Crater on the western edge of the moon’s near side. The Americas will have the best view of this impact. While it won’t be visible to the naked eye, viewers should be able to spot the debris plume through a good telescope for a few minutes.
A lunar crash landing visible from Earth will be a spectacle, one that raises concerns about the future of the moon. Multiple countries are planning uncrewed lunar missions, which could clutter the area around the moon. This SpaceX rocket won’t be the first to accidentally crash into the moon. In March 2022, a Chinese Long March 3C rocket also struck the lunar surface and left a crater that’s 29 meters wide.
China and the US are also pushing to build bases on the surface in the coming decades.
Bill Gray, the creator of the Project Pluto initiative to develop software and tools to track the orbits of asteroids, comets, and artificial satellites, was the first to calculate the trajectory of the impending Falcon 9 crash. He was also part of a team that worked on a preprint study released last month detailing the collision.
The crash landing is ”an opportunity to test pipelines for measuring flash properties to locate impact events seismically, and to better understand the multi-modal hazards posed to future lunar infrastructure and astronauts from space debris impacting the Moon,” the study states.
Although building a moon research center capable of supporting a sustained human presence will take at least a decade, NASA’s missions to construct the first facilities are expected to launch in the coming years as part of the Artemis program.
"These sorts of things are going to happen more and more often. And as we have more astronauts on the lunar surface, more lunar infrastructure habitats, for example, we need to understand how much of a risk these impact events actually pose," Benjamin Fernando, a researcher at Los Alamos National Laboratory in New Mexico and coauthor of the preprint study, tells ABC News.
The risk posed by space debris is part of a growing list of hazards that cast doubt on the safety of any long-term project on the moon. In addition to the potential for space junk to wreak havoc on the lunar surface, natural events such as meteorite strikes also threaten any future activities. But with any potential lunar bases still a decade or more away, there’s ample time for researchers to look at the hazards and plan for them.
“This is an ideal way of studying both the direct risks, the risk of being hit by debris or being blinded by a flash of light, but also the indirect risk, the risk of being hit by a cloud of ejected material and having that disrupt or interfere with spacecraft functions in lunar orbit as well,” Fernando says.
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Facts Only
* A SpaceX Falcon 9 upper stage, which transported lunar landers, is set to crash into the Moon on Wednesday.
* The rocket was left adrift due to insufficient fuel for a return to Earth or stable orbit.
* The impact speed is expected to be approximately 5,400 mph.
* The impact will cause an explosion equivalent to 3 metric tons of TNT.
* The resulting crater is projected to be up to 27 meters in diameter and 5 meters deep.
* The impact is expected around 6:34 am UTC on Wednesday, likely near Einstein Crater on the Moon's western near side.
* The debris cloud may be visible through a telescope for a few minutes.
* Bill Gray calculated the trajectory of the crash and was involved in a study detailing the collision.
* A study suggests the crash is an opportunity to test pipelines for measuring flash properties and understanding hazards to lunar infrastructure from debris.
Executive Summary
The upper stage of a Falcon 9 rocket, which transported lunar landers, is set to impact the Moon on Wednesday. This spent rocket drifted in space for a year and a half because it lacked sufficient fuel for an Earth return or stable orbit. The impact is expected at approximately 5,400 mph, about seven times the speed of sound. The impact is projected to create an explosion equivalent to 3 metric tons of TNT, resulting in a crater estimated to be up to 27 meters in diameter and 5 meters deep.
The event is expected near Einstein Crater on the western edge of the Moon's near side, around 6:34 am UTC on Wednesday, with the Americas having the best view. A debris cloud will be generated, which may be visible through a telescope for a few minutes. This incident raises concerns regarding the future of lunar exploration and the need to protect potential moon bases from space junk. Researchers are using this event as an opportunity to test methods for measuring flash properties seismically and understanding hazards to lunar infrastructure.
Full Take
The narrative frames a catastrophic, yet scientifically valuable, event as a pressing concern about long-term lunar habitation. The underlying tension lies between immediate physical hazard (the impact and resulting debris) and the long-term strategic goal of establishing a sustained human presence on the Moon. The piece pivots from reporting an accident to advocating for hazard mitigation planning, positioning the crash not merely as an event, but as necessary empirical data for future safety protocols.
A significant pattern is the strategic insertion of scientific justification into a potentially alarming event. By highlighting the need to measure flash properties and understand multi-modal hazards, the reporting shifts the focus from simple disaster to proactive risk management. This implies that inaction regarding debris risk is irresponsible given the pursuit of lunar expansion. The narrative subtly positions theoretical research—conducted by figures like Bill Gray and researchers at Los Alamos National Laboratory—as essential for justifying future infrastructure development, suggesting that scientific inquiry must precede large-scale colonization.
The implication for human agency centers on control: if space exploration inevitably generates debris, the ability to manage that risk becomes paramount. The discussion about building bases in the coming decades juxtaposed against the immediate crash emphasizes a temporal gap between technological capability and safety foresight. This suggests that progress is currently outpacing the establishment of necessary governance structures for orbital safety, forcing stakeholders to confront whether existing risk models are adequate for near-future extraterrestrial endeavors.
Bridge Questions: If the study's proposed methods for measuring flash properties are implemented, how quickly can these results translate into enforceable debris mitigation standards for lunar operations? What ethical framework should govern the trade-off between ambitious exploration timelines and the necessity of absolute hazard avoidance in cislunar space? How should international bodies balance national interests when regulating orbital debris that impacts shared celestial environments?
Sentinel — Human
The article functions as factual reporting layered with expert analysis, exhibiting characteristics consistent with human-driven journalistic synthesis rather than pure machine generation.