Friday, August 26, 2011

Habitable worlds thrown out of forming planetary systems and Messaging to Extra-Terrestrial Intelligence

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 - A new study indicates that our solar system might be unusual in the universe. Using a new computer model, the researchers showed that habitable worlds are likely to be thrown out of forming planetary systems when collisions occur between the system and clumps of material in space. See article.
g Life - Researchers have found what could be the oldest microbial fossils yet documented. The traces, discovered in 3.4-billion-year-old Australian rocks, might help to resolve the question of when cellular life arose, and how it produced energy. See article.
g Message - Active SETI messages are usually in the form of radio signals. Physical messages like that of the Pioneer plaque may also be considered an active SETI message. Active SETI is also known as METI (Messaging to Extra-Terrestrial Intelligence), or positive SETI. See article.

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