Northwestern University researchers studying the gut bacteria of Scott and Mark Kelly, NASA astronauts and identical twin brothers, as part of a unique human study have found that changes to certain gut “bugs” occur in space.
The Northwestern team is one of 10 NASA-funded research groups studying the Kelly twins to learn how living in space for a long period of time -- such as a mission to Mars -- affects the human body. While Scott spent nearly a year in space, his brother, Mark, remained on Earth, as a ground-based control.
Northwestern University researchers studying the gut bacteria of Scott and Mark Kelly, NASA astronauts and identical twin brothers, as part of a unique human study have found that changes to certain gut “bugs” occur in space.
The Northwestern team is one of 10 NASA-funded research groups studying the Kelly twins to learn how living in space for a long period of time -- such as a mission to Mars -- affects the human body. While Scott spent nearly a year in space, his brother, Mark, remained on Earth, as a ground-based control.
“We are seeing changes associated with spaceflight, and they go away upon return to Earth,” said Fred W. Turek, the Charles E. and Emma H. Morrison Professor of Biology in the Weinberg College of Arts and Sciences. He is a co-leader of the study.
“It’s early in our analysis, so we don’t know yet what these changes mean,” said Martha H. Vitaterna, study co-leader and research associate professor of neurobiology at Northwestern. “We don’t know what it is about spaceflight that is driving the changes in gut microbes.”
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