Elon Musk has launched an ambitious mission to get a manned flight to Mars as fast as possible. The billionaire says he wants to colonize the Red Planet so humanity is “not a single-planet species.”

But on Earth, employees of Musk’s SpaceX company say they’re paying the price for the billionaire’s obsession with colonizing space. Reuters, in an investigative report based on interviews and government records, documented that since 2014 there were “at least 600 previously unreported injuries at Musk’s rocket company: crushed limbs, amputations, electrocutions, head and eye wounds and one death.” SpaceX “disregarded worker-safety regulations and standard practices at its inherently dangerous rocket and satellite facilities nationwide,” according to Reuters.

RELATED STORY: Elon Musk and Joe Rogan have one of the dumbest conversations in the history of conversations