CU Boulder scholars elected members of the National Academy of Sciences
Lee Niswander and Bethany Ehlmann recognized ‘for their distinguished and continuing achievements in original research’
Two Թ of Colorado Boulder scientists have been joining a cohort of more than 140 scholars around the world who are recognized for their distinguished and continuing achievements in original research.
Lee Niswander, a distinguished professor of molecular, cellular and developmental biology, and Bethany Ehlmann, a professor of geological sciences and director of the Laboratory for Atmospheric and Space Physics, join an academy whose members include Albert Einstein, Marie Curie, Richard Feynman and Jennifer Doudna, among other scientists.
The National Academy of Sciences is a private, nonprofit institution that was established under a congressional charter signed by President Abraham Lincoln in 1863. It recognizes achievement in science by election to membership, and—with the National Academy of Engineering and the National Academy of Medicine—provides science, engineering and health policy advice to the federal government and other organizations.

Lee Niswander is a distinguished professor of molecular, cellular and developmental biology.
Pursuing clinical therapies
Niswander is head of the Niswander Lab, where she and her group investigate mouse models of embryonic development to provide insights into fundamental developmental processes, major human birth defects and potential clinical therapies. Her studies have revealed the molecular mechanisms that control formation of the central and peripheral nervous system, as well as lung, limb and neuromuscular development.
Niswander’s current focus is on early brain formation and birth defects that arise when normal brain formation goes awry, like failure of neural tube closure or maintenance of neural progenitor cells, resulting in spina bifida or microcephaly.
The Niswander Lab uses the mouse embryo and human-induced pluripotent stem cells as models of human development. The lab’s studies encompass genetics, epigenetics, environmental factors and live imaging to couple molecular insights to cell behaviors. Through collaborative efforts, Niswander Lab researchers are also exploring the genetic causes of neural tube defects in humans.
Niswander recently received the Hazel Barnes Prize, which celebrates the enriching interrelationship between teaching and research. It is the largest and most prestigious award funded by the university. This summer she will be honored with an Edwin G. Conklin Medal, which is awarded annually by the Society for Developmental Biology (SDB) to recognize a developmental biologist who has made and is continuing to make extraordinary research contributions to the field and is an excellent mentor, helping train the next generation of outstanding scientists.
Niswander received her bachelor’s degree in chemistry from CU Boulder, her master’s degree in biochemistry and genetics from Թ of Colorado Health Sciences Center (now CU Anschutz) and her doctorate in genetics from Case Western Թ. She performed her postdoctoral training in developmental biology at the Թ of California San Francisco.
“I am deeply honored to become a member of the National Academy of Sciences,” Niswander says. “I am grateful to the numerous trainees and their research discoveries that provided the foundation of this honor. I am excited to join the Academy in their mission to advise on scientific matters important for human health.”

Bethany Ehlmann is a professor of geological sciences and director of the Laboratory for Atmospheric and Space Physics.
Studying space
Ehlmann is a planetary scientist who, in addition to her roles as director of LASP and professor of geological sciences, holds the faculty roles of Provost’s Chair in the Research and Innovation Office and affiliate professor in the Department of Astrophysical and Planetary Sciences. Her research focuses on water in the solar system, the evolution of habitable worlds and remote sensing techniques and instruments for planetary missions.
Ehlmann is a science team member of multiple missions, including the Jupiter-bound Europa Clipper; the Earth-orbiting EMIT imaging spectrometer; the Mars Science Laboratory Curiosity rover; the Mars2020 Perseverance rover; the ExoMars rover; and orbiting and landed spectrometers for the Artemis lunar program. Previously, she was a science team member for the Mars Reconnaissance Orbiter CRISM instrument, the Dawn mission during its exploration of the asteroid Ceres, the Mars Exploration Rovers Spirit and Opportunity and principal investigator of Lunar Trailblazer.
Active in science policy and outreach, Ehlmann is president of the board of directors of The Planetary Society. She served as a member of the National Academies Planetary Science and Astrobiology Decadal Survey and the National Academies Committee on Astrobiology and Planetary Science. She is a fellow of both the American Geophysical Union and the Mineralogical Society of America, and has authored a children's book, “Dr. E's Super Stellar Solar System,” with National Geographic.
Ehlmann earned a bachelor’s degree from Washington Թ, where she double majored in earth and planetary sciences and environmental studies with a minor in math; two master’s degrees from the Թ of Oxford, in environmental change and management and geography; and master’s and doctoral degrees in geological sciences from Brown Թ.
“Election to the National Academy of Sciences is an honor,” Ehlmann said. “I’m grateful for this recognition and look forward to supporting the Academy’s mission to guide and advance scientific discovery, especially at a moment when humanity is extending our scientific exploration of the Moon,Mars and other planets.”
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