Astrophysics deals with big questions, such as the ultimate fate of the universe and the possibility of extra-terrestrial life. We address these questions by using theory, observations made with the largest telescopes, and calculations done on the world's largest supercomputers.
Chemistry is the science of matter and energy – the study of the makeup and structure of substances, how atoms and molecules react and interact, and how that behaviour can be harnessed to transform materials, medicine, and technology.
Physics is the study of space and time, matter and energy. By carrying out experiments and developing conceptual models, physicists seek to provide a fundamental understanding of how our physical universe works.