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Sara Seager

Astronomer & Planetary Scientist

Sara Seager is a Canadian-American astronomer and planetary scientist. Sara Seager is a Professor of Planetary Science, Professor of Physics, and Professor of Aeronautics and Astronautics at the Massachusetts Institute of Technology. Her past research is credited with laying the foundation for the field of exoplanet atmospheres, while her current research focuses on exoplanet atmospheres and the future search for signs of life by way of atmospheric biosignature gases.


Professor Seager is involved with a number of space-based exoplanet searches including as the Deputy Science Director for the MIT-led NASA mission TESS, as the PI for the on-orbit JPL/MIT CubeSat ASTERIA, and as a lead for Starshade Rendezvous Mission (a space-based mission concept under technology development for direct imaging discovery and characterization of Earth analogs). Before joining MIT in 2007, Professor Seager spent four years on the senior research staff at the Carnegie Institution of Washington preceded by three years at the Institute for Advanced Study in Princeton, NJ. Her PhD is from Harvard University, and her BSc from the University of Toronto. Among other accolades, Professor Seager is a member of the National Academy of Sciences and a 2013 MacArthur Fellow.