A discarded SpaceX Falcon 9 rocket will hit the Moon on Aug. 5, 2026 near Einstein Crater. Here’s who, what, when, where, why, and how to watch.
On August 5, 2026, a discarded SpaceX Falcon 9 rocket stage will slam into the Moon at roughly 5,400 miles per hour, and for the first time in years, astronomers around the world are pointing their telescopes at the exact same patch of lunar sky to watch it happen. The object is not a mission gone wrong. It is leftover space junk from a launch that succeeded perfectly eighteen months ago, and its collision course with the Moon is the kind of accidental science experiment that space agencies rarely get for free.
Here is the short version: who — SpaceX, via a spent Falcon 9 upper stage; what — an unintentional lunar impact; when — August 5, 2026, around 06:35–06:44 UTC (2:34–2:44 a.m. ET); where — near Einstein Crater on the Moon’s near side; why the stage was never actively deorbited after its 2025 launch and drifted into a lunar collision trajectory; how at approximately 5,400 mph, with no propulsion or control to divert it. Below is everything currently known, sourced from NASA, independent trackers, and the scientists preparing to observe it.
- What Is Actually Hitting the Moon?
The object is cataloged as 2025-010D, the spent upper stage of a SpaceX Falcon 9 rocket. It launched on January 15, 2025, carrying two lunar landers, Firefly Aerospace’s Blue Ghost and ispace’s Resilience, on a mission that succeeded. Once the landers separated, the upper stage itself was left in an orbit that, over eighteen months, drifted toward the Moon rather than burning up in Earth’s atmosphere or settling into a stable solar orbit.
Independent astronomer Bill Gray, who tracks discarded rocket hardware through his Project Pluto software, was among the first to flag the impending impact. NASA’s Center for Near Earth Object Studies later confirmed the trajectory. A NASA public affairs officer told Newsweek that the agency will “continue to track the booster for training purposes, as well as later observe the impact site for scientific purposes,” and stressed there is no danger to Earth.
- When and Where Will It Hit?
The impact is expected on August 5, 2026, between roughly 06:35 and 06:44 UTC around 2:34 to 2:44 a.m. Eastern Time near Einstein Crater, on the Moon’s sunlit western limb (near-side). That near-side location matters: it means observers in the eastern United States, Canada, and much of South America will have the best viewing conditions during the pre-dawn hours.
The stage will strike at roughly 5,400 miles per hour (about 8,700 km/h) around seven times the speed of sound carrying the destructive equivalent of about three tons of TNT. With no atmosphere to slow it and no parachute or guidance system aboard, the multi-ton piece of hardware will meet the lunar surface at full velocity.
Why This Happened
SpaceX never intended for this stage to hit the Moon. Space policy experts note the outcome could have been avoided if the upper stage had been given a small nudge into a stable orbit around the sun after its job was done a step increasingly built into modern mission planning but not universal. Instead, the stage was left where its trajectory eventually intersected the Moon’s.
This is not unprecedented. In March 2022, a different rocket body later attributed to China’s Chang’e 5-T1 mission struck the Moon’s far side and left a distinctive double crater. Experts point to that event as evidence this kind of accidental impact is becoming more common as more hardware accumulates in cislunar space.
- Why Scientists Are Excited, Not Worried
For planetary scientists, this is close to a free experiment. Benjamin Fernando, a postdoctoral researcher who co-authored the primary observation-planning paper for the event, explained that the impact should “vaporize the booster, create a flash of light, probably a plume of ejecta — dust, regolith, other stuff mixed into it and of course excavate a fresh crater on the lunar surface.” Studying the resulting crater and debris plume gives researchers real data on the composition of the lunar subsurface, comparable to NASA’s intentional 2009 LCROSS impact experiment.
There’s also a forward-looking angle. With NASA planning to return astronauts to the lunar surface as early as 2028, understanding how debris impacts play out the direct risk of being struck, and the indirect risk of a dust plume disrupting equipment or habitats is directly relevant to future mission safety. Fernando called it a rare, low-cost opportunity to study exactly that risk before humans are back on the surface in large numbers.
Can You Watch It Happen?
The impact flash itself, expected to last well under a second, will likely be too dim to see with the naked eye or ordinary binoculars. Serious observation will require telescopes and cameras capable of resolving a brief, faint flash against the lunar surface in the pre-dawn sky. Scientists behind the tracking effort have published an open invitation for amateur astronomers with appropriate equipment to help document the event in real time, since ground-based observation from multiple locations improves the odds of capturing usable data.
Key Facts at a Glance
•Object: Spent Falcon 9 upper stage, catalog ID 2025-010D
•Origin mission: January 15, 2025 launch carrying Blue Ghost and Resilience lunar landers
•Impact date/time: August 5, 2026, ~06:35–06:44 UTC (2:34–2:44 a.m. ET)
•Impact site: Near Einstein Crater, lunar near side, western limb
•Impact speed: ~5,400 mph (~8,700 km/h)
•Energy: Roughly equivalent to 3 tons of TNT
•Tracked by: NASA’s Center for Near Earth Object Studies; independent astronomer Bill Gray (Project Pluto)
•Risk to Earth: None
FAQs
1. Is this a SpaceX mission failure?
No. The original January 2025 launch was successful; this is leftover hardware a spent upper stage that was never actively deorbited after completing its job.
2. Is this dangerous to Earth or to people?
No. NASA has confirmed there is no danger to Earth. The impact will occur entirely on the Moon’s surface.
3. Will this be visible to the naked eye?
Unlikely. The impact flash is expected to be brief and faint, best captured with telescopes and sensitive cameras rather than seen directly.
4. Has this happened before?
Yes. A rocket body believed to be from China’s Chang’e 5-T1 mission struck the Moon’s far side in March 2022, creating a double crater that NASA’s Lunar Reconnaissance Orbiter later imaged.
5. Where can I find updates closer to the date?
NASA’s Center for Near Earth Object Studies and independent tracking site Project Pluto (run by astronomer Bill Gray) are the primary sources following the object’s trajectory in real time.