Question: How does space smell like?

Hayley Evers-King answered on 18 Mar 2013:

It doesn’t really smell of anything, because its a vacuum you wouldn’t be able to breathe in anything to smell. However astronauts who have been on space walks often say this odd smell of hot metal and steak seems to accompany them back on to their ships – it’s a mystery as to why, though NASA have said it might be related to the high energy vibration of ions (charged particles).