Learn about the fundamental theoretical physics describing the intertwining of space, time, matter and energy. Topics covered include exoplanets, galaxies, cosmology, stars and stellar evolution, general relativity and high energy astrophysics. You ll study physical systems under conditions that exceed anything could conceivably create on Earth, such as extrasolar planets or the extreme end states of stellar evolution. You ll learn how to assemble evidence from astronomy to build theoretical models of the cosmos.