Clara Sousa-Silva is a quantum astrochemist at the Center for Astrophysics | Harvard & Smithsonian. She investigates how molecules interact with light so that they can be detected on faraway worlds. Clara spends most of her time studying molecules that life can produce so that, one day, she can detect an alien biosphere. Her favorite molecular biosignature is phosphine: a terrifying gas associated with mostly unpleasant life. When she is not deciphering exoplanet atmospheres, Clara works hard to persuade the next generation of scientists to become an active part of the astronomical community.

Clara holds a doctoral degree in quantum chemistry from the University College London, and a masters degree in physics and astronomy from the University of Edinburgh in Scotland. Prior to joining the Center for Astrophysics, Clara served as a research scientist at MIT. Among her many achievements, Clara is the recipient of the prestigious 51 b Pegasi Fellowship from the Heising Simons Foundation. Clara’s work and commentary has been featured in the BBC, WIRED, and the New York Times, among many others, and is the focus of her TED talk.