Harrison Schmitt, one of the Apollo 17 astronauts, was allergic to moon dust

Imagine training your whole life, graduating top of your class at one of the most prestigious universities in the world, becoming an experimental test pilot, and finally realizing your lifelong dream of becoming an astronaut just to land on the moon and start sneezing because you’re allergic to moon dust. That happened to Harrison Schmitt, who was an astronaut on Apollo 17 and realized he was allergic to moon dust after his first space walk. Talk about a bad time to discover an allergy.