Above is a clip from Carl Sagan's Cosmos on youtube.

"...one raindrop isn't the only rain that falls..."
Isaac Asimov
Saggitarius Jewel Box-Hubble image credit-NASA/STSCI/AURA
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Frank Drake's 'Drake Equation' estimates (July 2008) as indicated on the PBS NOVA Science Now website:
n = 10,000, Number of communicating civilizations
R = 5, Rate of star formation per year in our galaxy
fp = 50%, Percentage of stars that form planets
ne = 2, Average # of planets that could support life per star
fl = 100%, Percentage of those planets where life occurs
fi = 20%, Percentage of those planets where intelligence develops
fc = 100% Percentage of those civilizations that produce interstellar communications
l = 10,000 yrs, Average lifetime of a communicating civilization
Click here to make your own estimates.
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Aside from the subjects covered by the links on the top left hand side of this page, some upcoming explorations on this website and the meetings will include:
ASTRONOMY INCLUDING ASTROGEOLOGY and ASTROMETEOROLOGY - speculations on possible environments of E.T. life.
SOCIAL IMPACT - predicting possible social impacts from 'not much' to 'overwhelming'.
EARTH-SENT-PROBES, TELESCOPES AND COLONIZATION - what will be the effects on E.T. and ourselves of our reconnaisance and expansion into the universe?
MONOLITHS, RELICS AND REMNANTS OF E.T. CIVILIZATIONS - on the detectibility of E. T. civilizations and their longevity.
MACHINE LIFE AND ITS IMPACTS ON BIOLOGY
PARTICIPATORY SETI - How the public gets involved.
SETI PHILOSOPHY - How the great minds of history and the present approach the search.
WHY "HABITABLE ZONES" ONLY APPLY TO SOME FORMS OF EARTH LIFE
DOES DARWINIAN EVOLUTION OCCUR ON A GALACTIC SCALE?
THE EXTRASOLAR PLANET REVOLUTION AND ITS IMPACT ON SETI
FUTURE SETI PROJECTS - Lunar far side radio telescope, Space based SETI, infra-red SETI and innovations that could revolutionize SETI.
WHAT HAS BEEN CHECKED ALREADY? - Looking into what search spaces have been investigated to date.
setisociety.org is dedicated to the promotion of SETI news, science, and philosophy. Join the Search for Extra-Terrestrial Intelligence, and for the latest SETI news go to our forum at The SETI Society Google Group, you can read it without joining, but feel free to sign up and participate!
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setisociety.org's IMAGE GALLERY has been updated 28 July, 2010


