Problem
I. We were introduced to neutron stars, a topic of fascination among astronomers due to their peculiar small size and incredibly high density. They are also quite numerous, estimated at about 100 million in our galaxy alone. In spite of this, however, only about 2000 pulsars have been found so far in the Milky Way, and it's not because we haven't been searching. List and explain several reasons why these numbers are so different?
II. Now that we have a nearly complete picture of a star's life cycle, which aspect or phase of stellar evolution do you find most interesting and why?