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The astronaut case that became younger after 340 days in the universe



Scott Kelly spent 340 days in the universe

After the arrival of man on the moon, every mission in space left new scientific discoveries. And that was the case that surprised the researchers: after almost a year at the International Space Station, Kelly has experienced a small change in a number of chromosomes that affect aging. It was remarkable that, when he returned home, aging accelerated

In a week in which the world is playing to see how it will look for five decades through the application, astronaut Scott Kelly (52) has passed the rejuvenation process during his trip to the International Space Station (ISS). Yes, after 340 days in the stratosphere, this space navigator returned to the younger.

Then there are the questions: Does the trip to the star create the effect of Benjamin Button? Will we live many years on Mars? What happens when you return to Earth? What was the real reason for traveling?

The 50th anniversary of the arrival of man on the moon allows us to return to the tour of space missions that have given the scientists amazing results. And the case of Scotty Kelly is one of them.

Scott Kelly inside the International Space Station, 400 kilometers from Earth (NASA)

And, understand everything, lThe keyword is Mars. Has it been since 2030 that the National Aeronautics and Space Administration (NASA) plans to travel to the fourth planet of the Solar System on a regular basis. For this he started working on this study called Twin Study (or twin studies) that consisted of simultaneous analysis of two twin brothers with a similar DNA on the Earth (Mark Kelly) and another who was launched into the universe (Scott Kelly) March 27, 2015

A group of 80 researchers from 12 universities formed 10 teams with the aim of: detailing the changes that DNA's long-staying person remains in the universe. So while they took a blood sample on the land from Ms. Kelly, his brother Scott sent the same study through the Soyuz missiles that came to the hands of scientists in less than 48 hours.

One shot over the Bahamas, where Kelly appears in his stockings (Scott Kelly / NASA)

Yes, the future has come. Imagine Scott Kelly, a shipwreck launching "bottle of water mail" from a 400-mile (Earth-wide) commercial aircraft (about ten thousand meters) and running at nearly 28,000 miles per hour, ISS traverses the world in the traces of the Boca River (conventional): 90 minutes.

The most interesting thing was that the results of Scott's analysis were surprising to the scientists themselves. So much so that I still can not explain certain modifications in my DNA.

There is a better life, what if it is in space?

During his stay at the International Station, Scott Kelly was exposed to an endless number of abnormal conditions in his daily life: changes in diet, increased stress for living in a different environment, greater exposure to radiation, micro gravity …

Despite all this, in some respects, the star proved to be some sort of youthful fountain for SK. The most important changes? One of the most significant transformations he suffered was seen at the end of the chromosome called telomeres. What is it about? These telomeres are a kind of aging ammeter. That is, as we grow, these chromosomes are shortened by stress-generated years, which increases chances for some health problems from cancer to cardiovascular problems.

One of the images astronaut took over during his space walks (Scott Kelly / NASA)

The fact is that during their stay in the universe scientists noticed that telomeres in their white blood cells extended. In other words, as he circled the ground at 8 kilometers per second, Scott Kelly became younger.

This means something like the effect of Benjamin Button (that character played by Brad Pitt, who was younger and younger), but which disappears when he returns from the stratosphere. And that was the most unusual thing in the behavior of Scott's chromosomes: back to earth, his telomeres suffered sudden stoppage. Even these days are even shorter than before the mission.

With the feet on Earth

As usual, NASA has published the results of this paper through journals science, There Colorado scientist Susan Bailey was more than surprised by the results of the study. First of all because I was expecting a reverse effect on telomer's behavior (she thought she would be shortened in space). And second, when he returned to normal life, many of the Scott's telomers returned to the size they had before: the astronaut now has more short telomers than before the space odyssey.

Scott Kelly is the twin of another former astronaut, Mark Kelly

But there are good news, too. In principle, the twin DNA that entered the universe was not dramatically altered. Also, the flu vaccine works the same on Earth as it does in the universe. In addition, scientists have found changes in genetic expression, some kind of organism resistance that allows them to create additional energy before changes in the space environment. In six months, more than 90 percent of these genes returned to their initial values, but "a small percentage of genes linked to the immune system and DNA repair did not return to their previous levels," they say. And they admit, "We still do not know whether these changes are good or bad."

Scott's formula of eyeballs changed in those 340 days, which had little effect on his appearance. The flight also influenced the group of germs (bacteria, viruses and fungi) that affect digestion and metabolism. This discovery could be used in research to improve food assimilation, but also to fight Alzheimer's, Parkinson's, and Autistic Diseases.

Space in which Kelly slept while staying in space (Scott Kelly / NASA)

Now the researchers are trying to understand what happens to DNA Scott who, in his return to New Jersey, has accelerated his aging.

"We would all want to avoid age-related diseases, so if we know what changes the telomer length, we may slow down aging," explains Bailey.

The study Scott Kelly was subjected to indicates that future path to Mars could stop a certain part of our aging. Of course, we need to study the side effects well.

Written by Julián Zocchi Infobae


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