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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.

When the guys come back in from the spacewalk, there really is a distinct smell of space; it's something I will never forget.

Smell is a long-distance sense, a way of stretching time and finding out in advance what lies ahead.

I always liked the smell of a smoke-filled room. I think it's a good smell.

The sense of smell explores; deleterious substances almost always have an unpleasant smell.

I'm just a huge fan of smells, first of all. I have a bit of an obsession with smells.

Smell is stimulating. It stirs things up and makes us nostalgic - a wonderful word which literally means 'ache for home' - which serves to inspire new circuits in the brain.

Different people's houses smell like different weird things. God forbid someone should come and nail down what my house smells like. It'd probably be a litter box... sweaty socks... and burnt bacon. That probably is what it smells like.

In humans, smell is often viewed as an aesthetic sense, as a sense capable of eliciting enduring thoughts and memories. Smell, however, is the primal sense. It is the sense that affords most organisms the ability to detect food, predators, and mates.