Scott Kelly Quotes
Space has its own unique smell. So whenever a vehicle docks, or if guys are out doing a spacewalk, the smell of space when you open up the hatch is very distinct. It's kind of like a burning-metal smell, if you can imagine what that would smell like.
Citations
Kelly, Scott. "I am Astronaut Scott Kelly, currently spending a year in space. AMA!" Reddit, 23 Jan. 2016.
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Scott Joseph Kelly is an American engineer, retired astronaut, and naval aviator. A veteran of four space flights, Kelly commanded the International Space Station (ISS) on Expeditions 26, 45, and 46.