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 - Using a global circulation model, scientists have determined why Titan has what looks like an enormous white arrow on its surface. See article.g LIFE - All life on Earth relies on a standard set of 20 amino acids to build the proteins that carry out life's essential actions. But did it have to be this way? See article.g MESSAGE - The Billion-channel ExtraTerrestrial Assay (BETA) is a radioastronomical search for microwave beacons from intelligent civilizations. It searches the 1400-1720 MHz "waterhole" region with 0.5 Hz resolution for narrow-band carriers. BETA incorporates several systems for terrestrial radio frequency interference mitigation: a terrestrial "veto" feed, two sky feeds to detect sidereal motion, and adaptive filtering to reduce intermittent interference. The search has surveyed the entire sky from +60 deg. to -30 deg. decliniation twice and is starting a third. During this time it has sifted through ~ 1016 frequency bins, followed by ~ 109 candidate features and archived 3500 of these which passed preliminary tests. No candidate has repeated or otherwise presents the assumed characteristics of an extraterrestrial intelligent origin. See article.Get your SF book manuscript edited Amazon.com Widgets
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