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SETI Institute scientists Seth Shostak, Jill Tarter, and Frank Drake have all expressed their excitement about the news and the implications for SETI searching. Gliese 581 has been targeted for SETI searches twice in the past with no hint of a radio signal, but this new information may mean a third search with the more powerful Allen Telescope Array.
“M stars are the most accessible, yet challenging, targets for habitable zone terrestrial planet searches,” says journal Editor-in-Chief, Sherry L. Cady, Ph.D., Associate Professor in the Department of Geology at Portland State University. “The potential for M Star habitable zone planets to evolve biospheres and retain them are but two of the many reasons to include M stars in the search for evidence of life beyond the confines of Earth.”
Why are SETI scientists interested in M-Stars? As Dr. Peter Backus, Observing Programs Manager for SETI, concluded in a preliminary report on the M-Stars workshop, “One…aspect of M dwarfs makes them intriguing for SETI: they may be ideal hosts for advanced technological civilizations because they live an extraordinarily long time. Stars like the Sun live (i.e., they fuse hydrogen into helium) for only about 10 billion years. No M dwarf that ever formed has yet to die; no M dwarf will die for more than another 100 billion years. With such long lifetimes, there are big possibilities for these small stars
Originally posted by blue bird
SETI has already listened for intelligent signals from Gliese 581 on two occasions in 1995 and 1997 - without result.
SETI is obviously interested in Red Dwarfs star system - but why NO signal whatsoever from Gliese 581 or many other red dwarfs- which are so abundant in Space ( 80% )!?