A discarded SpaceX Falcon 9 rocket stage is expected to strike the Moon on Wednesday, Aug. 5 [6].
The unintentional collision provides a rare opportunity for researchers to study the lunar surface. Scientists said they plan to observe the resulting dust plume and the formation of a new crater to better understand lunar geology.
The discarded booster weighs approximately 9,000 pounds [1, 2]. It is on a collision course with the lunar surface near the Eisenhower Crater [7]. The impact is expected to release energy equivalent to three tonnes of TNT [5].
Reports on the speed of the impact vary. Some sources said the rocket will hit at 5,400 miles per hour [3], while others said the speed is roughly 2,380 miles per hour, which is seven times the speed of sound [4].
The event is not a planned mission but the result of the booster's orbit intersecting with the Moon's path [1]. Because the collision is unintentional, it serves as a natural experiment for astronomers tracking orbital debris, and its interaction with celestial bodies.
“The discarded booster weighs approximately 9,000 pounds.”
This event highlights the increasing amount of orbital debris in space and the risks associated with discarded hardware. While the impact is unintentional, the ability of scientists to monitor the plume in real-time provides critical data on the Moon's surface composition and the physics of high-velocity impacts without the cost of a dedicated mission.
