Astronaut Scott Kelly's book is the closest you'll get to experiencing space yourself

If you’ve ever wondered what space smells like, think about sparklers on the Fourth of July. “Slightly burned, slightly metallic” is how former NASA astronaut Scott Kelly describes it in his new book Endurance, about his year in space.
Between 2015 and 2016, Kelly spent 340 days on the International Space Station (ISS) — the longest any American has ever spent in free fall around our planet. The purpose of the mission was to study how long periods in zero gravity affect t