DrSusanBailey

For the telomere study, the most surprising and unexpected finding was that he had longer telomeres in space - exactly the opposite of what we imagined. Susan Bailey

Since the twins are as identical as it gets, we are expecting to find things specific to space flight. We will be able to compare the twins to each other - and to other related astronauts, hopefully at least 10 others to get significant results.

I can eat lots of tacos!

Hard enough to find twin astronauts, much less triplets..

Will do!

Mark, the Earth twin, is retired from NASA so is participating to support his brother. Scott has been training for the mission for over a year.