The recent years have seen breathtaking progress in technology, especially in the receiver and digital technologies relevant for radio astronomy, which has at the same time advanced to shorter wavelengths. This is the updated and completely revised 5th edition of the most used introductory text in radio astronomy. It presents a unified treatment of the entire field from centimeter to sub-millimeter wavelengths. Topics covered include instruments, sensitivity considerations, observational methods and interpretations of the data recorded with both single dishes and interferometers. This text is useful to both students and experienced practicing astronomers. Besides making major updates and additions throughout the book, the authors have re-organized a number of chapters to more clearly separate basic theory from rapidly evolving practical aspects. Further, problem sets have been added at the end of each chapter.

Accounting for the enormous and amazing development cosmology has made in the past ten years, this long awaited second edition of Malcolm Longair's highly appreciated textbook has been extensively and thoroughly updated.It tells the story of modern astrophysical cosmology from the perspective of one of its most important and fundamental problems a " how did the galaxies come about? Longair uses this approach to introduce the whole of what may be called "classical cosmology." Moreover he describes how the study of the origin of galaxies and larger-scale structures in the Universe has provided us with unique and direct information about the physics of the very early Universe.The material is presented in an informal pedagogical manner. This includes a comprehensive introduction to relativistic astrophysics needed for the clarification of cosmological ideas.