![Jessica Meir Jessica Meir](http://www.thefamouspeople.com/profiles/thumbs/jessica-meir-119855-1.jpg)
Jessica Meir is an American-Swedish physiologist, marine biologist, and NASA astronaut. She is best known for her studies of the physiology of bar-headed geese and the behavior and diving physiology of emperor penguins. In 2020, Jessica Meir was named in Time magazine's Most Influential People list.