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Friday, October 02, 2009

SETI and SETI@HOME




Why if nobody has listened signals of extraterrestrial intelligence up to now, SETI (Search for ExtraTerrestrial Intelligence), persist after 50 years of having been founded?: 1) Because each day there are more discovered exoplanets (400 to the date), located at appropriate distances of its suns: neither very cold neither very hot 2) Because there are more disscovered planets containing water and organic compounds. Radiotelescopes have discovered more than 150 molecules (sugars, alcohol, amino acids), in interstellar space. 3) In 1950, the Prize Nobel Enrico Fermi establish this paradox: a great probability of extraterrestrial life exists, but not yet we have detected it. 4) An article published in Nature in 1959, persuaded to the scientific community that extraterrestrial the could not be denied in an absolute way 5) Some as Seth Shostak have predicted the discovery of evidences of extraterrestrial life among the 2020-2025. 6) Duncan Forgan (Edinburgh University), sustains that exist among 360 to 38,000 forms of life with capacity of interstellar communication in some point of our galaxy. Francis' equation Drake (N = N * fp ne fl fi fc FL), suggests the existence of among 2 to 1000 extraterrestrial civilizations in our galaxy.

A bigger problem is the distance. If it is impossible to travel quicker than the speed of the light, it would take thousands of years to store information sent to us. For it some say that we will never see in person to extraterrestrial beings. To arrive to the nearest star would take 100,000 years of trip. SETI, looks for extraterrestrial by means of: a) signals captured by giant radiotelescopes. b) by means of the shipment of human figures, our DNA and solar system and music, to areas located to 21,000 years light containing millions of stars. Some like Friedrich Gauss, suggested to send signs to the space, by means of mirrors or extensive fire areas. c) by means of continuous scrutiny of light or infrared waves or signals captured by radiotelescopes using 5 million people interconnected by means of PC program seti@home.
SETI y SETIHOME

¿Porque si nadie ha escuchado hasta ahora señales de inteligencia extraterrestre, persiste el SETI (Search for ExtraTerrestrial Intelligence), trás 50 años de fundada?: 1) Porque se van descubriendo más exoplanetas (400 a la fecha), ubicados a distancias adecuadas de sus soles : ni muy fríos ni muy calientes 2) Porque se van descubriendo más planetas conteniendo agua y compuestos orgánicos. Los radiotelescopios han descubierto yá, trazas de más de 150 moléculas (azúcares, alcohol, aminoácidos), en el espacio interestelar. 3) En 1950, el Premio Nobel Enrico Fermi estableció la paradoja que lleva su nombre: existe una gran probabilidad de vida exterrestre, pero aun no la hemos detectado. 4) Un artículo publicado en Nature en 1959, persuadió a la comunidad científica que la inteligencia extraterretre no podía ser negada de forma absoluta 5) Algunos como Seth Shostak han predicho el descubrimiento de evidencias de vida extraterrestre entre el 2020-2025. 6) Duncan Forgan (Edinburgh University), sostiene que existen entre 360 a 38,000 formas de vida con capacidad de comunicación interestelar en algún punto de nuestra galaxia. La ecuación de Francis Drake (N = N* fp ne fl fi fc fL), sugiere la existencia de entre 2 a 1000 civilizaciones extraterrestres en nuestra galaxia.

Un problema mayor es la distancia. Si es imposible viajar más rápido que la velocidad de la luz, tomaría miles de años recabar información enviada a nosotros. Por ello algunos dicen que nunca veremos en persona a extraterrestres. Arribar a la estrella más cercana tomaría 100,000 años de viaje. SETI, busca extraterrestres mediante : a) señales captadas por radiotelescopios gigantes. b) mediante el envío de figuras humanas, de nuestro DNA y sistema solar y música, a zonas ubicadas a 21,000 años luz conteniendo millones de estrellas. Algunos como Friedrich Gauss, sugirieron enviar señales al espacio, mediante espejos o extensas áreas de fuego. c) mediante el escrutinio continuo de ondas de luz, infrarojas o señales captadas por radiotelescopios empleando a 5 millones de personas interconectadas mediante el programa SETI@home.

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