Early bombardment boosted life and what would you say to ET?

Welcome! "Alien Life" tracks the latest discoveries and thoughts in the various elements of the famous Drake Equation. Here's today's news:
g Abodes - NASA-funded study indicates that an intense asteroid bombardment nearly 4 billion years ago may not have sterilized the early Earth as completely as previously thought. The asteroids, some the size of Kansas, possibly even provided a boost for early life. See article.
g Message - For nearly fifty years, the Search for Extraterrestrial Intelligence (SETI) has used radio telescopes to scan the heavens for signs of alien technology. But scientists still do not agree about whether we should reply to an extraterrestrial signal, and if we do, what we should say. To help answer these questions, the SETI Institute has launched Earth Speaks, a research project to collect messages online from people around the world. See article.
g Learning - Here’s a great book for fourth- through sixth-grade kids: “Is Anybody Out There?” by Heather Couper, Nigel Henbest and Luciano Corbella. Of the book, one reviewer wrote: “Does intelligent life exist beyond our planet? This visually exciting examination looks at both the myth and the science related to the question. The authors, both British science writers, describe what alien lifeforms might look like, how we might communicate with them, and the impact the discovery of extrasolar planets has had on the development of scientific equipment. The book is organized into 17 appealing photo-spreads, comprising color photographs, detailed captions and boxed insets that contain information about a scientist or about a historic scientific event, or suggested activities for would-be scientists. The inclusion of a "count the alien civilizations" foldout board game is a bonus.”
g Aftermath - Quote of the Day: “It is not a question of whether we are emotionally prepared in the long run to confront a message from the stars. It is whether we can develop a sense that beings with quite different evolutionary histories, beings who may look far different from us, even "monstrous," may, nevertheless, be worthy of friendship and reverence, brotherhood and trust. We have far to go; while there is every sign that the human community is moving in this direction, the question is, are we moving fast enough?” – Carl Sagan

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