ABSTRACT
This chapter reviews some of the astrophysical and cosmological aspects of black holes. Since the orientation of the School was more mathematical than physical, the discussion will not be very technical but he will give references to more technical articles where appropriate. The chapter provides some basic discussion of the mathematical aspects of black holes for completeness but again his treatment will be rather elementary. It shows the quantum aspects of black holes and nothing about their connection with quantum gravity. The chapter discusses the cosmological consequences of black hole evaporations. The probability estimates are necessarily subjective, since it is difficult to assess the likelihood of any scenario in a field as prone to changing fashions as cosmology. The chapter considers some astrophysical aspects of black holes, in particular black hole accretion and the evidence this affords for stellar black holes in binaries systems.
