[3][4] She is a co-founder of the astrobiology social network SAGANet, and on the board of directors for Blue Marble Space, a nonprofit education and science organization.
She attended Cape Cod Community College and studied at the Florida Institute of Technology, where she graduated cum laude earning a B.S.
[6] After graduating from Dartmouth, Walker began a postdoctoral fellowship at the Georgia Institute of Technology working at the NSF/NASA Center for Chemical Evolution.
[3] In 2015, Walker began a fellowship at the ASU-SFI Center for Biosocial Complex Systems as part of a joint educational and research program between Santa Fe Institute and Arizona State University.
Walker et al. discovered that only networks with long polymers show potential to produce significant spontaneous asymmetrical chirality in speculative early Earth conditions.
[9] Furthermore, a logistical model of Walker et al. suggested that major evolutionary transitions, such as the origin of life, could be characterized by a reverse of information flow in a system from bottom-up to top-down.
Walker has shown theoretically how the occurrence of these biotic traits in an abiotic system present a possible framework for the origin of life.
[9] Walker is an advocate for the communication of science to the public, and has participated in many interviews, panels, and lectures to discuss her research and topics related to her fields of study.