a few seconds agoOne in the other space on Earth, NASA's two twins are no longer identical
Periskopi(8 years ago)
(8 years ago)The case of the twins, one of whom remained in space for one year and the other on earth, confirmed an early NASA thesis on the changes that human organism undergoes in the absence of land gravity and natural oxygen. Scott Kelly stayed for 12 months at the International Space Station, while his brother [...]
Scott Kelly stayed for 12 months at the International Space Station, and his identical brother Mark on Earth.
When Scott returned via the “Human Research”, NASA investigated the changes in the organism that had occurred between two identical brothers.
What proved to be that the two identical twins were no longer such. NASA researchers analyzed Scott after his return home and on days of adapting his organism to earthly conditions.
Some biological functions were immediately returned to their “abnormally”, identical to Mark, others had a need for days, but what didn't come back more identical between the two brothers was DNA.
NASA researchers say the lack of natural oxygen, gravity, and the fundamental change in diet affect gene behavior. Scott's telomeries - the extension of chromosomes that are cut back over the years on land conditions - were surprisingly extended. Two days after Scott had landed, most of these telomeries were cut back.
93 percent of Scott's genes have returned to normal status, but 70 percent will likely take longer, perhaps even will never change. Here are NASA researchers focusing on better understanding the human body changes in space and how far these changes can go.
“Heuman Research” is program of NASA, which is studying the effects of being in space in the absence of gravity on the human body and aims to precede adverse surprises in the event of a long space trip, starting from that one to Mars. /Top Channel
