Over the past few years, more and more scientists have been talking about the possibility that life exists, or can theoretically exist, in exotic forms that lack DNA, or perhaps even carbon or water. I've been keeping up with the conversation, and writing articles about it in the New York Times, Discover, Popular Mechanics, and, most recently, in Seed. Today I report in the New York Times that a panel of scientists arranged by the National Academies of Sciences has issued the first official weird life report. They're calling for a more aggressive search for strange forms of life. You can read the report for yourself here. It's very interesting. You could organize a whole year's worth of high school science around it, chapter by chapter. Aliens 101, call it.