A SpaceX rocket stage is set to impact the moon early Wednesday morning. This four-metric-ton object is traveling at high speed toward the lunar surface. Cosmic forces and solar activity have nudged the debris onto this unexpected trajectory. While the impact is unintentional, it highlights concerns about space junk disposal. NASA and SpaceX are discussing methods to prevent similar future lunar collisions.

"The debris plume should reach roughly 15 to 20 km in altitude for the ejecta..."

The rocket has been drifting in space for more than a year; When it strikes the moon on Wednesday it will carve out a crater and send up a plume of dust and rubble that scientists…

Abandoned spacecraft will hit with the force of three tons of TNT and leave behind a hole in the lunar surface