Monday, September 14, 2009

Optical SETI and human migrations

Welcome! "Alien Life" tracks the latest discoveries and thoughts in the various elements of the famous Drake Equation. Here's today's news:
g Intelligence - Analysis of ancient DNA from skeletons suggests that Europe's first farmers were not the descendants of the people who settled the area after the retreat of the ice sheets. Instead, the early farmers probably migrated into major areas of central and eastern Europe about 7,500 years ago, bringing domesticated plants and animals with them, says Barbara Bramanti from Mainz University in Germany and colleagues. 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 Aftermath - Quote of the Day: “… the universe vacant of life ... one asks why the proof is piled so high ... So intolerable is the despair that settles upon us that we instinctively protest against Mr. Wallace’s limitation... A planet may die, but a lifeless universe! — ‘that way madness lies.’” — a review of Alfred Russel Wallace’s book “Man’s Place in the Universe” (1903), which declared man was alone in the universe.”

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