Key facts
- A SpaceX Falcon 9 rocket's upper stage is on a collision course with the Moon.
- The collision is expected to occur on Wednesday.
- The rocket stage weighs four metric tons.
- It is expected to impact the Moon at approximately 5,400 mph.
A piece of SpaceX's Falcon 9 rocket is on a collision course with the Moon, with the impact anticipated for Wednesday. The four-metric-ton upper stage, launched in 2015, has been on an uncontrolled trajectory since completing its mission.
This event marks a rare instance of human-made space debris impacting the lunar surface. The speed of impact is estimated at 5,400 miles per hour.