Friday, March 23, 2012

Radio vs. optical waves in SETI and examining forming stromatolites in a subglacial lake

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 - NASA has unveiled a new atlas and catalog of the entire infrared sky showing more than a half billion stars, galaxies and other objects. See article.
g Life - In 2008, scientists discovered large conical stromatolites forming beneath the thick perennial ice of Lake Untersee. In his blog from Antarctica, astrobiologist Dale Andersen discusses recent work on this mysterious subglacial lake. 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.

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