“The best description I can come up with is metallic; a rather pleasant sweet metallic sensation. It reminded me of my college summers where I labored for many hours with an arc welding torch repairing heavy equipment for a small logging outfit. It reminded me of pleasant sweet smelling welding fumes. That is the smell of space.”
—ISS Science Officer Don Pettit: Expedition Six Space Chronicles #4
(via Boing Boing)