Sunday, June 05, 2011

Potential for habitable planets around Gliese 581 and optical vs. radio SETI

Welcome! "Alien Life" tracks the latest discoveries and thoughts in the various elements of the famous Drake Equation. Here's today's news:
g Stars - Astronomers are providing new information about the potential for habitable planets in the Gliese 581 system. New data shows that the system's host star, Gliese 581, is relatively quiet. This increases the chances that one of the planets in the system could support environments for life as we know it. See article.
g Message - While advanced civilizations might be tempted to use optical means such as lasers to send information between the stars, there are some good reasons that nearly all the major Search for Extraterrestrial Intelligence experiments are looking for radio waves instead. See article.
g Cosmicus - A space flight by microscopic worms could help humans overcome the health threats posed by space travel. See article.

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