NASA @NASA
At 2pm ET: The landmark Twins Study brought researchers together to observe what physiological, molecular and cognitive changes happen to a human body from exposure to spaceflight hazards. Listen to what they learned from an astronaut's #YearInSpace: https://t.co/RNUrUkOLO6 https://t.co/9YM1K9QfmT — PolitiTweet.org