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  2. Here's why astronauts age slower than the rest of us here on ...

    www.aol.com/heres-why-astronauts-age-slower...

    Astronauts aboard the ISS, on the other hand, are much farther from Earth's center of gravity than the rest of us — about 260 miles farther. So, in that case, astronauts actually age slower .

  3. Twin paradox - Wikipedia

    en.wikipedia.org/wiki/Twin_paradox

    Put another way, the space ship sees the image change from a red-shift (slower aging of the image) to a blue-shift (faster aging of the image) at the midpoint of its trip (at the turnaround, 3 years after departure); the Earth sees the image of the ship change from red-shift to blue shift after 9 years (almost at the end of the period that the ...

  4. Effect of spaceflight on the human body - Wikipedia

    en.wikipedia.org/wiki/Effect_of_spaceflight_on...

    Water cohesion plays a bigger role in microgravity than on Earth In space, astronauts lose fluid volume—including up to 22% of their blood volume. [ 81 ] When the astronauts return to Earth, low blood volume can cause orthostatic intolerance or dizziness when standing. [ 82 ]

  5. Physiological effects in space - Wikipedia

    en.wikipedia.org/wiki/Physiological_effects_in_space

    Most crewmembers felt that the pre-mission timeline should provide adequate time to maintain musculoskeletal strength and stamina. Some astronauts attributed their capabilities on the lunar surface to pre-mission training because in some cases more force was needed on the lunar surface while wearing the EVA suit than was needed in 1G on Earth.

  6. Human tissue launches in space for the first time - AOL

    www.aol.com/news/human-tissue-launches-space...

    "This is similar to what elderly people suffer on earth after a long period," Dr Alsaleh said. If the samples age more quickly in space, scientists will learn more about the process far faster ...

  7. The trio revealed some anecdotes about the trials of readjusting to life on Earth after spending more than 230 days in space. The astronauts remained tight-lipped about the nature of the medical ...

  8. Overview effect - Wikipedia

    en.wikipedia.org/wiki/Overview_effect

    White's astronaut interviews confirmed the importance of the difference between intellectual knowledge versus experience, of perceiving the "striking thinness of the atmosphere", of thinking of ourselves interconnected and part of the Earth as an organic system, and that we as different people "are all in this together". [9]

  9. Photos and videos show why only 360 people have become ... - AOL

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    For two years, NASA trains its astronauts, including have them work underwater and learn desert survival skills, to get them ready for space travel. Photos and videos show why only 360 people have ...