Shocking images have revealed the damage left behind when Elon Musk's discarded SpaceX rocket crashed into the moon. On Wednesday, an out–of–control SpaceX Falcon 9 second stage careened into the lunar surface at 5,400 miles per hour (8,690km/h). The Korea Aerospace Research Institute's (KARI) Danuri spacecraft flew over the impact site at 7.34am BST, shortly after the SpaceX rocket collided. 'Through this observation, changes in the terrain around the impact site and traces of ejecta spread were confirmed.' However, scientists know exactly what a SpaceX Falcon 9 second stage weighs and is made of.