Astronaut twins age difference

  • Scott kelly wife

    • A new NASA statement suggests the physical and mental stresses of Scott Kelly's year in orbit may have activated hundreds of "space genes" that altered the astronaut's immune system, bone formation, eyesight

    Scott and mark kelly

  • Nasa twin study summary

    • Nasa twin study results

      Scott kelly wife
    Scott and mark kelly Nasa twin study summary
    Nasa twin study results Astronaut twins age difference