Astronaut Scott Kelly will be heading to the International Space Station for a year-long mission aimed at studying the physiological effects of prolonged space-flight. Crucial to the study is Scott’s twin brother Mark Kelly, a retired astronaut who will participate by staying here on earth, as a sort of controlled variable. Virginia spoke with Mark about the mission.
Twin astronauts tackle a different kind of project in Mark Kelly’s new children’s book, Astrotwins: Project Blastoff. You can read an excerpt from the book at this website.
