Physiologist and Harvard professor who was accepted into the National Aeronautics and Space Administration (NASA)'s astronaut program in 2013.
After earning a Master's degree from France's International Space University, she received a PhD in physiology from the Scripps Institution of Oceanography in San Diego, California.
She conducted research on the physiology of northern elephant seals, emperor penguins, and bar-headed geese.
She grew up in Caribou, Maine. She later attended Brown University in Providence, Rhode Island.
Prior to becoming an astronaut, she worked as a NASA Extreme Environment Mission Operations (NEEMO) aquanaut. Fellow astronaut Thomas Marshburn also began his NASA career as a NEEMO aquanaut.