NASA has employee to smell objects to be sent to space

NASA has employed George Aldrich for nearly 40 years as its 'Chief Sniffer' to smell every object before they can be flown into a space shuttle. Aldrich’s team tests nearly all items that astronauts would encounter during their flight including fabric, toothpaste, circuit boards, and the ink on their checklists. Interestingly, Aldrich can detect more than 10,000 smells.