Sara Imari Walker

Sara Imari Walker is an astrobiologist and theoretical physicist at Arizona State University. As a Berggruen Institute Fellow, Walker develops theories and experiments toward characterizing the origin of life. In her recent book, “Life as No One Knows It: The Physics of Life’s Emergence” (Riverhead Books, 2024), she argues that studying the origin of life requires radical new thinking.


Latest From Author
DATE POSTED
April 1, 2025
Changing the definition of life may allow us to discover alien worlds.
Artwork by Merijn Hos for Noema Magazine article by Sara Imari Walker and Claire Isabel Webb.
DATE POSTED
April 27, 2023
Technology is not artificially replacing life — it is life.