Experts reveal the timeline for NASA astronauts stranded to react to the Earth

American astronauts Suni Williams and the next mission of Butch Wilmore will be readjusting the Earth’s environment once they return on Tuesday night after being stranded in the International Space Station For nine months.

“There are many changes within his body. The immune system is responding to stress on space flight,” Weill Cornell Medicine Professor, Dr. Christopher Mason, said “Fox & Friends.”

Dr. Mason was the main researcher of NASA Twin Studywho studied how the body of the astronaut Scott Kelly was affected by his historic space flight of 12 months in 2016. Kelly was studied against his identical twin brother, the retired senator Mark Kelly, D-Ariz., who remained on earth.

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NASA Astronauts Suni Williams and Butch Wilmore were the flight crew in the Boeing Starliner capsule and are scheduled to return home on Tuesday. (POT)

“We saw the change of gene expression, which is how genes are regulated in their body, and generally telomeres become a little longer in the space of almost all the missions we have seen, so we would expect some of these changes,” said Dr. Mason.

Telomeres, according The National Institute for Human Genome Research, are “repetitive DNA sequences (s) at the end of a chromosome.”

The Astronaut duo has been stranded at the International Space Station in microgravity since June. His mission was only scheduled to last a week after the launch of the first Boeing astronaut flight, but they were trapped in space after the problems forced NASA to bring the Boeing Starliner Back empty.

Spending time in space tends to leave astronauts temporarily higher and thinner, Mason explained.

“Everything is, at least in some measures … all transitory. Most is a response to the space flight, and generally in a few weeks they return to normal. The most dynamic are the first days when they return to earth,” he added.

Stranded astronauts prepare for the long -awaited return to Earth

The former NASA astronaut, José M. Hernández, who once spent 14 days in space, said the duo will need “much” physiotherapy to restrict his bones and muscles.

“I remember that my first two words when I went down was, ‘Gravity Chupa’, because your body begins to adapt and you have to recalibrate your vestibular equilibrium system,” said Tuesday “Fox & Friends First.”

“It will take a couple of months before they feel a bit normal here on earth.”

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Pilar Arias of Fox News contributed to this report.