What is the definition of ‘quasar’ and are they in any way related to black holes?

Question by Misty: What is the definition of ‘quasar’ and are they in any way related to black holes? seasky.org’s definiton: Quasar An unusually bright object found in the remote areas of the universe. Quasars release incredible amounts of energy and are among the oldest and farthest objects in the known universe. They may be the nuclei of...