Source: GeoHealth During the Apollo missions to the Moon, astronauts encountered an unexpected hazard: lunar dust. It clung to their spacesuits; crept into the lunar landers; and caused irritated throats, coughing fits, and watering eyes. Studies later determined that longer-term exposure to lunar dust has chronic health effects. Now, scientists are concerned about how Martian dust could affect astronauts, too. Wang et al. documented how Martian…