Did you know? Astronaut Scott Kelly grew 2 inches after living in space for a year 

Details: NASA’s Astronaut Scott Kelly was on a mission with the International Space Station, and one of his groundbreaking mission was to study how well humans can endure, mind, body, and spirit on long-duration spaceflight. During his space mission, the discovery made shocked a few, as Scott Kelly grew two inches taller than his identical twin brother Mark and termed his whole space experience  “Pretty good.”  Also:   As CNBC.Com quotes,  “Comparing the twins will help researchers spot any genetic changes that might have occurred.”  CNBC also quoted the major research findings: “ Astronauts no longer walk to get in the spacecraft, they float so the bones in the legs, hips and spine experience a significant decrease in load-bearing.”  How do astronauts get taller in space?  As the report quotes,  “Astronauts get a bit taller in space because of the disks of the spinal column.”