Tuesday, April 27, 2010

Pulsars beaming signals at different octaves and why ETI won't contact us by radio

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 – New observations from a trio of international telescopes have caught enigmatic radio-emitting stars called pulsars beaming out signals across different octaves, revealing more clues into how these fast-spinning stars generate their cosmic lighthouse emissions. See article.
g Abodes – A European-built spacecraft has used its solar wings as sails to skim through the sweltering atmosphere of Venus at the planet's outermost border with space. See article.
g Intelligence – Information processing circuits in digital computers are static. In our brains, information processing circuits - neurons - evolve continuously to solve complex problems. Now, an international research team has created a similar process of circuit evolution in an organic molecular layer that can solve complex problems. This is the first time a brain-like "evolutionary circuit" has been realized. See article.
g Message – Put yourself in the situation of the aliens, out there somewhere in the galaxy. They surmise that Earth looks promising for the emergence of intelligent life one day, but they have no idea when. There would be little point in beaming radio messages in this direction for eons in the vague hope that one day radio technology would be developed here and someone would decide to tune in, says one astrobiologist. See article. Note: this article is from 2004.

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