In 2006 NASA scientists discovered a strange noise in deep space that was several times louder than anything they would expect. To this day they do not know what it was and it has been dubbed the "Space Roar."
George Aldrich has worked for NASA for over 40 years, and his job is to smell things. This is to ensure that there are no unpleasant smells on ISS and the shuttle. Oh and his nose also gets calibrated and tested every four months.