The scent was created to help astronauts train before launching in orbit, and it was part of NASA's goal of eliminating any potential surprises astronauts might encounter or experience in space.
"It's kind of like a smell from a gun, right after you fire the shot," Peggy Whitson, an astronaut and former resident of the International Space Station,told CNN in a 2002 interview about the smell of space. "I think it kind of has almost a bitter kind of smell in addition to being smoky and burned."
Richmond said that he has struggled to describe how the fragrance smells, adding, "Astronauts describe the smell as a mix of gunpowder, seared steak, raspberries and rum."
(Source: CNN)