Very interesting indeed apparently he was a few cms taller too which I guess makes sense for the same reasons you are a little taller in the morning. I guess what it boils down to is man wasn't meant to delve the outer parameters of space, or maybe we were, just wish we could do a little more for the preservation of earth and its creation before doing whatever no one knows what in space. Interesting read Cheer$:)
RE: Huge discovery stuns NASA scientists. After months in space as his twin brother remained on Earth, Scott Kelly's DNA actually changed in space, scientists found.