Landon was looking up info on the “hollow.com” concept (because of that “vapid but greedy” dot com CEO report) and ran across this oddity: Hollow Planets Theory. Someone has published a book that discusses the possibility that Earth and other planets may be hollow. No, it’s not a joke. There are actually some scientific facts that make this a concept worth looking at. At the very least, it shakes up long-lived assumptions enough to spark some new thinking on the makeup of planets. All five Amazon.com reviews are very positive.