Retired Astronaut, Commander Scott Kelly, recently took to Twitter to answer fan questions to promote his new book Endurance: A Year in Space, A Lifetime of Discovery. Kelly spent nearly a year in space on one mission, which is the longest spaceflight by an American.
What does space smell like?
Burning metal...does this seem concerning to anyone else?!
He also addressed the Flat-Earth theorists...
There are way more answers on his Twitter feed and like he said, check out his book!
It sounds really interesting!