The bright galaxies, star clusters, and nebulae catalogued in the late 1700s by the famous comet hunter Charles Messier are still the most widely observed celestial wonders in the sky. The second edition of Stephen James O'Meara's acclaimed observing guide to the Messier Objects features improved star charts for helping you find the objects, a much more robust telling of the history behind their discovery including a glimpse into Messier's fascinating life and updated astrophysical facts to put it all into context. These additions, along with new photos taken with the most advanced amateur...

Featuring stunning images, updated observations and astrophysical descriptions, this is ideal for observers in search of a new challenge.

The most up-to-date account available of Mars, a small world with a big reputation.