The prospect of a human colony on Mars has rapidly moved from science fiction to reality in recent years, with space agencies like NASA, ESA, and others openly discussing the possibility of manned missions to the red planet and eventually the establishment of full-on settlements. Of course, a self-sustaining Mars colony would need the same things we need here on Earth, including the ability to farm, and scientists in the Netherlands are now reporting that they’ve taken a big step towards that goal by successfully getting worms to reproduce in Mars-like soil.