1. (a) Outline what will happen to a star that is much heavier than our Sun once it leaves the main sequence.
2. (b) Explain what is meant by the term *Chandrasekhar limit* and why it is important in defining the eventual fate of a heavy main sequence star.
3. (c) What opposes the gravitational force in a neutron star to allow the star to have hydrostatic equilibrium?
4. (d) Explain what is meant by the *Oppenheimer–Volkoff limit* and why it is important in defining the eventual fate of a heavy main sequence star.