The key feature of this classic title is the section of star charts that are cherished by backyard astronomers everywhere. Each new edition has outsold the previous one because of thorough revisions and additional new material.NightWatch has been acclaimed as the best general interest introduction to astronomy. The fourth edition has improvements over the 3rd edition in every chapter, including:The famous charts, ideal for stargazers using a small telescope or binoculars A complete update of the equipment section, including computerized telescopes An enlarged photography section, including how-to instructions for using the new generation of digital cameras for astronomical photography, both with and without a telescope The tables of future solar and lunar eclipses, planetary conjunctions and planet locations, updated through 2025. This edition includes star charts for use in the southern hemisphere. There are also dozens of new photographs throughout the book that show the latest thrilling discoveries made by current space observatories and probes.

    When it was written in 1983 there was little physical evidence for the existence of black holes. Recent discoveries have only served to underscore the elegant theory developed here, and the book remains one of the clearest statements of the relevant mathematics.

    Trefil employs minimal mathematics in this compelling and lucid narrative, which not only offers a remarkable view of the universe's beginnings, but also speculates about its end. 1983 edition.

    Arguing from the evidence of virology and epidemiology, they show that it is overwhelmingly likely that life originated outside the solar system, and propose that life-forms from space are constantly arriving to mingle with our own biosphere.

    

    -- Practical guides designed for the novice-- Filled with helpful ideas about choosing and using equipment

    How are the nuclear power plants we call stars formed? Where do they get their energy and how do they die--and what does this suggest about the future of the universe? One of the most popular books written on astrophysics, 100 Billion Suns provides an exhilarating and authoritative life history of the stars.