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Twin Study to Take Place on ISS and Earth

international space station astronauts scott kelly mark kelly nasa

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#1    Waspie_Dwarf

Waspie_Dwarf

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  • We are all in the gutter, but some of us are looking at the stars.

    Oscar Wilde

Posted 09 August 2013 - 11:43 PM

One if by Land, Two if by Space: Astronaut Twins Tantalize Human Research Possibilities in Spaceflight


www.nasa.gov said:

“Twin minds think alike” is not a common phrase in the public dialogue, but in the case of twin astronauts, it may someday become one. In a spark of astronaut, and possibly familial, curiosity, twin NASA astronauts Scott and Mark Kelly initiated an unprecedented research request to study the human effects of spaceflight using their identical twin genetic makeup.  NASA’s Human Research Program (HRP) realized that another opportunity to study astronaut twins would be rare, and took the brothers up on their offer of genetic comparison in the name of human space exploration.


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"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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#2    Waspie_Dwarf

Waspie_Dwarf

    Space Cadet

  • 32,593 posts
  • Joined:03 Mar 2006
  • Gender:Male
  • Location:Bexleyheath, Kent, UK

  • We are all in the gutter, but some of us are looking at the stars.

    Oscar Wilde

Posted 06 November 2013 - 05:44 PM

It Takes Two: A Year of Twin-formation and the Effects of Spaceflight on Individuals


www.nasa.gov said:

What could twins tell us about the effects of spaceflight on humans? NASA hopes to find out.  In a world as diverse as ours, it can be easy to forget that most humans are approximately 99.5 percent genetically identical. Identical, or “monozygotic,” twins are nearly 100 percent identical. What accounts for the differences we know exist? The remaining 0.5 percent of genetic real estate, which on the surface seems like a small amount, codes nearly all the characteristics that make us unique individual humans.

The complexity of individual differences makes it difficult for scientists to predict responses to disease, treatments or environmental stressors that apply across the entire human population. This is especially relevant to scientists studying the effects of spaceflight on the human body. Spaceflight may magnify the difference between individuals because it exposes crew members to stressors such as radiation, microgravity, isolation, confinement, and altered light/dark cycles. If this might be true for individuals who are genetically different, what does this mean for twins who are nearly identical?

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"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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