They are twins and astronauts, one of them has lived a year in space and has aged more than his brother

April 12, 2019

Mark and Scott Kelly were part of NASA's unprecedented mission to measure man's ability to survive outside the Earth.

Brothers Mark and Scott Kelly They are twins and therefore identical. However, a recent NASA mission provoked one of their radical changes that erased their similarities.

Americans 55 years old are astronauts and one of them spent 340 days inside a space station. The others never left the planet and when they found themselves, the US space agency summoned them to compare their similarities.

The first thing that was measured was the telomereswho have just been protective plugs at the ends of chromosomes that have an impact on the aging of the population. To this end, the results of a study by Susan Bailey, professor Susan Bailey of Colorado State University, who led the largest research on Kellys health and found that they had changed dramatically, were taken.

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Scott spent a year in space and his white blood cells have undergone a radical change due to their absence from the Earth for a year. However, his data gave results completely contrary to what Bailey was waiting for.

"The study of NASA twins: a multidimensional badysis of a human space flight of a year," was published in Science this Friday and tells of the radical changes that this badysis has highlighted. .

Bailey He had blood samples for more than two years, which had been delivered in the previous moments, during and after the trip in space. Thus, with his team, he studied the telomeres and badyzed the samples provided by the Soyuz rocket.

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"We were surprised that this is the first reaction," said the teacher to see the first results and, to his surprise, launched a comic response. "But that's science, is not it?"