CNN CNN Newsroom With Brooke Baldwin March 27, 2015 19:41:00
Seen in space flight. spend a long time off the planet and your bones thin. this puts astronauts at a greater risk. nasa says knowing this is crucial if ever going to mars or deep space. how will we know if being in space is cause of kelly's body changes? nasa has the perfect specimen to compare him to. his twin brother, retired as astronaut mark kelly. he has scroll tiered for the study. he will be getting poked and prodded by researchers here while scott makes history in orbit. kelly won't be alone. several other crew members will rotate in and out during kelly's
Source: archive.org