Research Interests:   Professor Sasselov studies the interaction between light and matter (radiative transfer) from stars and exoplanets to biomolecules at the origins of life, and astrobiology in general. He runs a photochemistry lab exploring the origins of life's building blocks with photochemical and photodynamic experiments. He is the director of Harvard's Origins of Life Initiative, an interdisciplinary institute that joins biologists, chemists and astronomers in searching for the starting points of life on Earth (and possibly elsewhere).