SpaceX Is Launching 'Organs on a Chip' to the ISS
b'Last month, a journal published an n-of-one experiment of unusual origin. It was the study comparing astronaut Scott Kelly\\u2019s physiology to that of his Earthbound identical twin brother, Mark. During his time on the International Space Station, Scott gathered reams of data on his own health and took hundreds of samples of his own stool, urine, and blood, for comparison later to those of Mark.\\nLearn more about your ad choices. Visit podcastchoices.com/adchoices'