All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

12 moonwalkers experienced respiratory issues due to lunar dust smelling like gunpowder, a phenomenon known as 'lunar hay fever'. This is significant because it highlights the health risks astronauts face during space missions. The dust poses a challenge for future lunar and Mars missions. Engineers should consider this when designing protective gear and habitats for space exploration.