NASA twins study explores space, the final genetic frontier

[Dave-W]

WASHINGTON (AP) — From his eyes to his immune system, astronaut Scott Kelly's body sometimes reacted strangely to nearly a year in orbit, at least compared to his Earth-bound identical twin — but newly published research shows nothing that would cancel even longer space treks, like to Mars.

The good news: Kelly largely bounced back after returning home, say scientists who released final results from NASA's "twins study," a never-before opportunity to track the biological consequences of spaceflight in genetic doubles.

NASA twins study explores space, the final genetic frontier

 

[Brightmoon]

Actually identical twins do have enough genetic differences to be told apart from each other in some cases. But this is still a worthwhile experiment