How guanine formed on ancient Earth and what the search for ETI tells about humanity

Welcome! "Alien Life" tracks the latest discoveries and thoughts in the various elements of the famous Drake Equation. Here's today's news:
g Life - By adding ultraviolet light to a model prebiotic reaction, researchers have discovered a way to form guanine. Guanine is a building block of RNA and scientists previously had trouble determining a method by which the molecule could have formed on the ancient Earth. See article.
g Message - Here’s a good overview of Drake Equation — though the rest of the Web site itself is a bit suspect. See article.
g Aftermath - The search for extraterrestrial life grips the human imagination because it tells us about ourselves. See article.

Get your SF book manuscript edited