Space travel may cause long-term change to DNA, says NASA

Posted March 16, 2018

"I no longer have to call @ShuttleCDRKelly my identical twin brother anymore".

Changes like the longer telomeres disappeared after 48 hours of being back on Earth.

"After returning to Earth, Scott started the process of readapting to Earth's gravity". At least this was the result of NASA analyzes, after which the scientists announced that their DNA had been changed by 7%. Some of these mutations, found only after spaceflight, are thought to be caused by the stresses of space travel.

"Such actions can trigger the assembly of new molecules, like a fat or protein, cellular degradation; and can turn genes on and off, which change cellular function".

While 93 per cent of Kelly's DNA returned to normal once he was back on Earth, several hundred "space genes" remained.

Roger Federer entered into fourth round of Indian wells
Djokovic scrambled to win the second set on Sunday but the rust from the layoff was evident as he made 62 unforced errors overall. However, after levelling up at 2-2, Federer hurried to a one-set lead in the next four games, winning three of them to love.

However, some changes persisted for six months. Scott developed significantly longer telomeres in space. However, the remaining 7 percent point to possible longer-term changes in genes related to his immune system, DNA fix, bone formation networks, hypoxia, and hypercapnia.

The study itself focused on four categories of research split into 10 investigations to evaluate the identical twin astronauts Scott and Mark Kelly.

"Oftentimes, when the body encounters something foreign, an immune response is activated", Christopher Mason, a Twins Study researcher and associate professor at Weill Cornell Medical College, told Business Insider.

For those in the dark on the USA space agency's study, astronaut Scott Kelly and his twin brother, Mark Kelly, took part in NASA's "Twin Study".

One-Year Mission & Twins Study The two astronauts began their year in space on March 27, 2015, and returned to Earth on March 1, 2016. The space agency now says space may have nothing to do with the telomere changes as compared with his brother - it may be due to Scott Kelly's "rigorous exercise regime and restricted caloric intake while on the space station".

Trump and Tillerson's biggest policy disagreements
Tillerson was an early advocate for US participation in talks with North Korea , though not at such a high level. Foreign Affairs Minister Chrystia Freeland had developed a strong working relationship with Tillerson .

Last year, NASA published its first round of results from the Twins Study at the Investigator's Workshop for Human Research Program - and the findings this year largely corroborated them.

A year in space can change your DNA, according to a study by Nasa.

Reacting to the news of the study results this week, Kelly expressed amazement at his body's changes ― and also used the opportunity to poke fun at his brother. A more comprehensive report will be released later this year.

Scott's one-year trip to ISS - which was six months longer than any other astronaut - is a stepping stone to a three-year mission to Mars, NASA says.

Eastern Ghouta: Syrian army splits enclave in three, reports say
Syrian state TV showed pictures on Friday of what it said was a number of fighters boarding a bus to leave the enclave. An AFP correspondent inside Douma said shelling and air strikes were rocking the town on Saturday.