Sci-fi fantasies have long predicted that we might live on the moon. But while the lack of atmosphere poses a problem for lunar living, there may be an even bigger sticking point: new research suggests that the moon’s surface is itself toxic to humans. For obvious reasons, long-term human exposure to the moon’s environment has never been studied in depth. But now a team of international research scientists has investigated samples of moon dust to predict its long-term effects on our health. Turns out moon dust is super-fine and sharp-edged—and they’re the biggest problem for human health. Read the full story at Gizmodo.