Mark and Scott Kelly - Astronaut Twins
Astronaut Mark Kelly (left) and twin brother astronaut Scott Kelly are pictured here during a news media discussion in Houston prior to Scott's launch on International Space Station Expedition 45/46. During that 1-year mission (and since), the brothers served as a comparative test of the impact of long-term spaceflight on the human body. Commander, Astronaut Scott Kelly along with his brother, former Astronaut Mark Kelly speak to news media outlets about Scott Kelly's 1-year mission aboard the International Space Station.
Credit: NASA
Image Number: jsc2015e004210
Date: January 19, 2015
Mark and Scott Kelly - Astronaut Twins
Astronaut Mark Kelly (left) and twin brother astronaut Scott Kelly are pictured here during a news media discussion in Houston prior to Scott's launch on International Space Station Expedition 45/46. During that 1-year mission (and since), the brothers served as a comparative test of the impact of long-term spaceflight on the human body. Commander, Astronaut Scott Kelly along with his brother, former Astronaut Mark Kelly speak to news media outlets about Scott Kelly's 1-year mission aboard the International Space Station.
Credit: NASA
Image Number: jsc2015e004210
Date: January 19, 2015