Physics is the most basic natural science and considers physical systems ranging in size from nuclei to atoms, to the cosmos. It is an extremely broad field, with many sub-fields. Astrophysics, an option within the physics major, deals with the beginning and future of the universe, black holes, and the fate of the sun. It also covers scientific discoveries such as gravitational lenses, gamma-ray bursters, quasars, and extra-solar planets using instruments like the Hubble Space Telescope and the Galileo probe orbiting Jupiter. At completion, you earn both a bachelor's degree in physics and a minor in astronomy, the precise background favoured by most graduate astronomy programs across the country.