Here, one of the world's leading astrophysicists provides the first comprehensive and logically structured overview of the many ideas and discoveries pertaining

Measuring the spin distribution of supermassive black holes is of critical importance for understanding how these black holes and their host galaxies form and e

"An introduction to quasars and black holes with information about their formation and characteristics. Includes diagrams, fun facts, a glossary, a resource lis

A review of the current observational knowledge and understanding of the cosmic X-ray background.

Lee Smolin offers a new theory of the universe that is at once elegant, comprehensive, and radically different from anything proposed before. Smolin posits that