The SpaceX Falcon Lunar Crash Is a Warning for Moon Bases
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 four 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 three metric...
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