NASA mimics Einstein-esque paradox twin experiment


Separated for a full year, close friends of ISSET, NASA astronauts Scott and Mark Kelly will make it possible for future astronauts to travel farther than ever before, and still look forward to happy reunions when they return home.


In March 2015, NASA astronaut Scott Kelly will join cosmonaut Mikhail Kornienko on a one-year mission to the International Space Station. Their lengthy stay aims to explore the effects of long-term space flight on the human body.

“We already know that the human immune system changes in space. It’s not as strong as it is on the ground,” explains Craig Kundrot of NASA’s Human Research Program at the Johnson Space Centre. “In one of the experiments, Mark and Scott will be given identical flu vaccines, and we will study how their immune systems react.”

Although NASA’s Human Research Program has been researching the effects of spaceflight on the human body for…

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