Life Beyond the Universe is a good text for teaching the concept of life beyond Earth. It integrates the primary sciences of Astronomy, Geology, and Biology. I like the way it is set up in general as it incorporates many of the concepts of learning.While it was created for a college course, I have used it for teaching Juniors and Seniors in High school. The first edition is too outdated. And the 3rd edition was beyond my budget. The second edition has changes from the first that I prefered. Over all, it is a good first text for astrobiology.