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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...

    Time can appear to move faster or slower to us relative to others in a different part of space-time. That means astronauts on the International Space Station age slower than people on Earth.

  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...

    It is still unknown whether bone recovers completely. Unlike people with osteoporosis, astronauts eventually regain their bone density. [citation needed] After a 3–4 month trip into space, it takes about 2–3 years to regain lost bone density. [citation needed] New techniques are being developed to help astronauts recover faster. Research on ...

  5. Sergey Avdeev - Wikipedia

    en.wikipedia.org/wiki/Sergey_Avdeev

    For a long time, Avdeyev held the record for time dilation experienced by a human being. [1] [2] [3] In his 747 days aboard Mir, cumulative across three missions, he went approximately 27,360 km/h and thus aged roughly 0.02 seconds (20 milliseconds) slower from an Earthbound person's perspective, [4] which is considerably more than any other human being, except Sergei Krikalev. [5]

  6. Young People's Bodies Are Aging Faster Than Ever - AOL

    www.aol.com/lifestyle/young-peoples-bodies-aging...

    New science hints that young bodies may be aging faster than ever, and it comes at a time when cancer rates are climbing in young people. We explore the link.

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

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

    Human tissue samples have been taken to the International Space Station (ISS) as part of an experiment that could help treat people in old age. Researchers from the University of Oxford's Space ...

  8. John Young (astronaut) - Wikipedia

    en.wikipedia.org/wiki/John_Young_(astronaut)

    John Watts Young (September 24, 1930 – January 5, 2018) was an American astronaut, naval officer and aviator, test pilot, and aeronautical engineer. He became the 9th person to walk on the Moon as commander of the Apollo 16 mission in 1972.

  9. Do the Astronauts Stuck in Space Have Enough Food and Water ...

    www.aol.com/astronauts-stuck-space-enough-food...

    The astronauts aboard the Boeing Starliner could remain in space for several months – but many wonder if they have enough food and water to survive that long.. During a recent interview with the ...