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  2. 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 ...

  3. 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.

  4. Through the Wormhole - Wikipedia

    en.wikipedia.org/wiki/Through_the_Wormhole

    Einstein discovered that time is relative while Isaac Newton had thought of time as absolute. Time runs faster for astronauts than people on Earth; people on Earth experience time more slowly because they are closer to the gravitational field of the massive Earth. Studies have shown that for many people time can feel like it goes by faster as ...

  5. Effect of spaceflight on the human body - Wikipedia

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

    Space medicine is a developing medical practice that studies the health of astronauts living in outer space. The main purpose of this academic pursuit is to discover how well and for how long people can survive the extreme conditions in space, and how fast they can re-adapt to the Earth's environment after returning from space.

  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. List of spaceflight records - Wikipedia

    en.wikipedia.org/wiki/List_of_spaceflight_records

    In 1961, Soviet Vostok 1 cosmonaut Yuri Gagarin became the first person to enter space and orbit the Earth, and in 1969 American Apollo 11 astronaut Neil Armstrong became the first person to set foot on the Moon. No human has traveled beyond low Earth orbit since 1972, when the Apollo program ended.

  9. Colorado astronaut discusses adjustments after returning to Earth

    www.aol.com/colorado-astronaut-discusses...

    DENVER — An astronaut from Colorado is readjusting to life on Earth after spending 235 days in space, two months longer than planned.Matthew Dominick is a NASA astronaut originally from Wheat Ridge.