After detecting a strange moon slowly approaching the planet, the Power Miners performed some engineering type calculations. They determined it was on a collision course. The impact would end the world. Panic set in; they boarded and launched their escape drilling rig. Their escape route took them out through a pyramid.
The Pharoah said, "Crap, there goes the neighborhood."
As they headed towards the stars, they hoped never to see another Rock Monster again.
Oh oh, they picked up a hitchhiker to the galaxy.