But NASA isn’t turning this into some kind of space-based reality show: The qualifications to be an astronaut candidate are still pretty specific. You need a science degree (ideally an advanced one), three years of related professional experience, or 1,000 hours of pilot-in-command time in a jet aircraft. And couch potatoes, take note, you also “must pass the NASA long-duration spaceflight physical.”
In the dictionary, the word physical has several meanings. Which one is used here?