NASA found out that the human genome in space may change

NASA Twin Study Shocker: Space Travel Altered Astronaut Scott Kelly's DNA

NASA Twin Study Shocker: Space Travel Altered Astronaut Scott Kelly's DNA

The plan for the multiple research areas in NASA's Twins Study.

Scott Kelly and his twin brother, Mark Kelly-also an astronaut-were the subjects of the study that sought to find out exactly what happens to the body after a year in space.

According to the researchers, almost seven percent of Scott Kelly's gene did not return to normal as it shows long-lasting changes compared to his identical twin brother Mark Kelly, who also had the same DNA.

Scott's telomeres (the ends of chromosomes that shorten as you age) actually became significantly longer in space. According to new research, the majority of Scott's telomeres actually shrank back to match his brother's DNA, and they did so within just two days of Scott returning to Earth.

Scott said: "I did read in the newspaper the other day that 7% of my DNA had changed permanently".

Seven percent of his genes did not return to normal after he landed, researchers found. However, the remaining seven percent indicated long-term changes related to his immune system, DNA fix, bone formation networks, hypoxia, and hypercapnia.

That certainly is weird. He recently went on a year-long mission on the International Space Station where he stayed for 342 days.

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Scott Kelly is a NASA astronaut who has completed more than 500 days in the space in his career.

During his 20-year tenure as a NASA astronaut, Scott Kelly spent total 340 consecutive days at International Space Station in low-orbit Earth while his brother retired astronaut Mark Kelly remained on the earth.

If all astronauts to embark on a mission to Mars are going to see such a large change in their DNA, then there could be all sorts of inherent health risks involved in exposing people to that much zero gravity. As it turned out, the space really changes us, and after the return of Scott to the Ground it was discovered that his DNA has changed considerably.

As for whether an extended period of time causes astronauts to grow better mustaches, we'll probably never know.

Speaking of Scott Kelly, he is one of the United States astronauts who has spent the longest time in space.

The individual studies on the twins will be combined into a summary paper, as detailed in the graphic above.

The "Twins Study" was a preliminary step in the lead-up to an eventual long-haul manned mission to Mars. NASA has proclaimed its first manned mission to Mars in 2030s whereas SpaceX, a private space agency based in California has claimed its target of 2023 when it will launch humans on the red planet.

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