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Wendy Freedman Astrophysicist

Wendy Freedman’s research focuses on observational cosmology, dark energy, the extragalactic distance scale, and the evolution of galaxies. She is best known for her work refining the Hubble constant, a value that describes the expansion rate of the universe and can provide information about its size and age.


Gruber Cosmology Prize, 2009.

Elected a member of the American Philosophical Society, 2007.

Elected a member of the National Academy of Sciences, 2003.

Awarded the Magellanic Prize of the American Philosophical Society, 2002.

Elected a member of the American Academy of Arts and Sciences, 2000.

Relevant Publications

J.R. Neeley et al, "On the Distance of the Globular Cluster M4 (NGC 6121) Using RR Lyrae Stars. II. Mid-infrared Period-luminosity Relations," Astrophys. J., vol. 808, no. 1, pp. 15, Jul. 2015.



Associate Fellow Cosmology & Gravity


University of ChicagoThe Department of Astronomy & Astrophysics


PhD (Astronomy & Astrophysics) University of Toronto

MSc (Astronomy & Astrophysics) University of Toronto

BSc (Astronomy & Astrophysics) University of Toronto


United States

Ideas Related to Wendy Freedman

News | Cosmology & Gravity

Scientists discover a “mini” supernova

Scientists have been tracking the occurrence of star explosions, or supernovae, since they were first observed. Recently, a team of...