Complete Idiot's Guide to Astronomy

"Look to the stars." Although Astronomy has been around for more than 5, 500 years, astronomers say that weve learned more than 90% of what we know about the universe in just the last 50and much of "that" in the last decade "The Complete Idiots Guide to Astronomy, Fourth Edition, " continues to be the most comprehensive introduction to the topic, covering all the latest advances and discoveries, including: The demotion of Pluto and promotion of Ceres as planetary objects Breakthrough evidence of recent water flow on Mars New developments in asteroid-tracking programs New information on the nature and shape of our universe Mind-bending theories concerning multiple universes Information on the latest telescopes As a bonus, this book includes a fascinating CDROM with more than 200 of the most spectacular images from NASA, star maps, and other tools for backyard astronomers.