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How Long Space Missions Affect the Health of Astronauts

March 11, 2016 By Melissa Gansler Leave a Comment

"astronaut"

Astronauts are affected by zero-gravity both mentally and physically.

(Mirror Daily, United States) – After 340 days spent on the ISS, Mikhail Kornienko and Scott Kelly are now experiencing Earth’s gravity again. Last Friday, a group of scientists led an AMA session when they answered the questions of all Reddit users who were curious about the results of the year-long experiment. The main topics were how long space missions affect the health of astronauts and how the results will influence the future mission to Mars.

According to the chief scientist of the ISS, Julie Robinson, the experiment is far from being over. Relevant samples that the two men collected during the year they spent on the Space Station will arrive in May. Also, the American and the Russian volunteers will be tested for approximately six months, on a regular basis.

Robinson declared that even if NASA had the Mars spacecraft ready to go, they wouldn’t launch the mission for another couple of years because they still don’t know how long space missions affect the health of astronauts.

Space Affects the Muscles, Eyes and Bones

The human body undergoes a number of physical changes while being exposed to weightlessness. Astronauts usually lose some muscle mass and a certain amount of bone density. But fortunately, they all grow back when they return to Earth.

Also, one interesting effect is that the individuals that spend a lot of time in zero-gravity grow a bit due to the lack of gravity that compresses the spine. But, as in the case of the muscle mass, this problem is also remediated when the astronauts are exposed to gravity once more.

A more interesting, and permanent, physical change is a loss of vision. Because the zero-gravity conditions cause a shift in brain fluids, the optic nerve swells and presses on the back area of the eye. This causes the ocular globe to flatten.

But the scientists did not notice a pattern. It may be that the affected astronauts were predisposed to such conditions.

Will NASA Build the Mars Space Craft With Artificial Gravity in Mind?

Unfortunately, Robinson said that, for the moment, artificial gravity on a large spacecraft remains a thing for the science-fiction world.

While NASA did experiment with the technology, there are a few setbacks that made them renounce the idea of implementing such technology on the Mars mission spacecraft.

What about Senioritis?

This is another problem that will eventually be handled by the mission commanders. Kelly and Kornienko were able to call their family members from a satellite phone. They even had access to Twitter and Facebook. The real Mars mission will not allow the members any form of direct communication.

That is why the selection trials will be rigorous. NASA wants only crew members that can spend long periods without talking to anybody else aside their fellow colleagues.

They need people who can work in a team, who are able to avoid or resolve conflict.

All in all, the “year in space” experiment is far from being over, scientists now having to analyze the tremendous amounts of data provided by the two brave men, Kelly and Kornienko.

Image source: www.pixabay.com

Filed Under: Tech & Science Tagged With: body changes to the astronauts, ISS, Scott Kelly, Space Station

Scott Kelly Hosted a Super Bowl Party in Outer Space

February 8, 2016 By Tara Hamilton Leave a Comment

"Facebook image of the stadium on the Super Bowl weekend"

Kelly passed by the Levi’s stadium on Sunday and managed to snap some Super Bowl pictures.

(Mirror Daily, United States) – The Super Bowl usually gathers the highest amounts of people in front of the TV. There are only a few times in history when the final game didn’t record world-breaking views, and the MASH series finale is one of them. Astronaut Scott Kelly hosted a super bowl party in outer space to honor the American tradition, but sadly, people had other engagements and couldn’t attend his gathering.

In a social media post, the astronaut Scott Kelly announced that he also hosted a Super Bowl Party on the ISS, but nobody managed to attend. He was quite upset by the no-show and said that he would have treated his guests with nachos.

This year’s game between the Carolina Panthers and the Denver Broncos that was broadcasted live from the Levi’s Stadium this Sunday was watched not only on the television screens from across the world but also from far into space.

The astronaut Scott Kelly tuned in this Sunday from the Space Station to watch how the Carolina Panthers took on the Denver Broncos in the Super Bowl finale that took place this Sunday. And even though he sent out a public invitation, nobody managed to come to keep him company and eat his nachos.

Kelly flew over the area of the San Francisco Bay this Sunday and he managed to snap a few photos of the Levi’s Stadium. When he uploaded them on a social media platform he accompanied the photographs with a text saying that he managed to attend the Super Bowl finale in person.

The only impediment was that his seat was only 250 miles above the stadium and he was traveling with a speed of approximately 17,500 miles per hour, which means that his visit did not last very long.

Scott Kelly celebrated 317 days on the ISS on Sunday. He and Mihail Korniyenko, a Russian astronaut, are currently in the middle of a research upon the effects of such a long space-exposure has on the human body and on the health of the astronaut.

The two astronauts will only have to stay for a bit longer on the ISS, the experiment being designed for a time frame of one year.

Maybe when he gets back on solid ground he will be surprised with an actual party with many people and other food except nachos and space rations. And who knows, being such a fan he might just be visited by the Super Bowl winning team.

Image source: Facebook

Filed Under: Tech & Science Tagged With: ISS, Scott Kelly, Super Bowl, Super Bowl in Space

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