Galaxies

The visitor

K.A. Applegate

21st Century Astronomy (with Student CD-ROM)

David Burstein, Jeff Hester, Bradford Smith, George Blumenthal, Jeffrey S. Hester, Ronald Greeley, Gary Wegner, Howard Voss

Our Milky Way and other galaxies

by Isaac Asimov.

Horizons: exploring the universe

Michael A. Seeds.

Hubble: 15 Years of Discovery

Robert A. Fosbury, Lars Lindberg Christensen

Universe

Roger A. Freedman, William J. Kaufmann, III.

Astronomy today

Eric Chaisson, Steve McMillan.

Mysteries of deep space: black holes, pulsars, and quasars

by Isaac Asimov.

Deep-Sky Companions: Southern Gems

Stephen James O'Meara

Universe

written by Robin Kerrod