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      1996

      • NASA selected both Mark and Scott Kelly to be Space Shuttle pilots in 1996. They joined the NASA Astronaut Corps in August of that year.
      en.wikipedia.org › wiki › Mark_Kelly
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  2. en.wikipedia.org › wiki › Mark_KellyMark Kelly - Wikipedia

    NASA selected both Mark and Scott Kelly to be Space Shuttle pilots in 1996. They joined the NASA Astronaut Corps in August of that year. Mark Kelly has logged over 54 days in space. During his 2006 flight on Space Shuttle Discovery, the second mission after the loss of Space Shuttle Columbia, Kelly discussed the risks of flying the Space Shuttle:

  3. The brothers’ connection will be more important than ever beginning in March, when Scott takes off for a one-year stay aboard the space station, setting a single-mission record for a U.S....

  4. Oct 18, 2023 · While Scott Kelly spent 340 days in space his brother Mark Kelly was on Earth. What is the difference between the Twins Study and the One-Year Mission? Scott Kelly’s One-Year Mission was a joint U.S.-Russian expedition that took place from March 2015 to March 2016. American astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko spent ...

  5. www.nasa.gov › humans-in-space › twins-studyTwins Study | About - NASA

    Sep 27, 2023 · Retired astronaut Scott Kelly spent one year in low-Earth orbit aboard the International Space Station while retired astronaut Mark Kelly, his identical twin, remained on Earth. The twins’ genetic similarity provided scientists with a reduced number of variables and an ideal control group, both important to scientific investigation.

  6. www.nasa.gov › humans-in-space › twins-studyTwins Study | About - NASA

    Sep 27, 2023 · The landmark Twins Study helped scientists better understand the impacts of spaceflight on a human body through the study of identical twins. Retired astronaut Scott Kelly spent one year in low-Earth orbit aboard the International Space Station while retired astronaut Mark Kelly, his identical twin, remained on Earth. The twins’ genetic ...

  7. Apr 11, 2019 · April 11, 2019. Identical twin astronauts, Scott and Mark Kelly, are subjects of NASA’s Twins Study. Scott (right) spent a year in space while Mark (left) stayed on Earth as a control subject....

  8. Mar 21, 2017 · Between 2015 and 2016, Scott spent 340 days on the International Space Station, while his genetically identical twin Mark stayed on Earth to function as a control subject. Before, during, and...

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