Alien Life

  • Third Rocks from the Stars
    What are the primary bioindicators for remote sensing of life on a far-away world? A report prepared for future space-borne telescopes that will seek to answer this question, also looks deeper into how to find and confirm these prospective water worlds.
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  • Dyson’s Long Shot
    Renowned physicist Freeman Dyson, famous for his designs of grand energy collectors called Dyson's Sphere, has put down a public bet: life will first be discovered elsewhere not on a planet or moon, but someplace other than what we could recognize as terrestrial turf.
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  • News_Image_244
    O ramo de exobiologia da NASA patrocinou um fórum público em Palo Alto, Califórnia, EUA, na terça, 26 de agosto de 2003, intitulado “The Drake Equation Revisited” (“A Equação de Drake Revisitada”). O fórum apresentou as questões sobre a estimativa das probabilidades de se encontrar
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  • Cause for Optimism: Part III
    The NASA exobiology branch sponsored a public forum in Palo Alto, CA, on Tuesday, August 26, 2003, entitled, "The Drake Equation Revisited." The forum addressed the questions of estimating the probabilities for finding intelligent life in the universe. This is the third in the series
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  • BOINC At Home
    The most powerful computing network ever assembled is about to enter a new design phase. Drawing on the vast unused idle times of more than four and half million home computers, SETI@home gets 15 TeraFLOPs and costs $500K so far, compared to a typical
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  • News_Image_322
    O ramo de exobiologia da NASA patrocinou um fórum público em Palo Alto, Califórnia, EUA, na terça, 26 de agosto de 2003, intitulado “The Drake Equation Revisited” (“A Equação de Drake Revisitada”). O fórum apresentou as questões sobre a estimativa das probabilidades de se encontrar
    more...
  • Our Lonely Galaxy: Part II
    The NASA exobiology branch sponsored a public forum in Palo Alto, CA, on Tuesday, August 26, 2003, entitled, "The Drake Equation Revisited." The forum addressed the questions of estimating the probabilities for finding intelligent life in the universe. This is the second in the series
    more...
  • News_Image_275
     O ramo de exobiologia da NASA patrocinou um fórum público em Palo Alto, Califórnia, EUA, na terça, 26 de agosto de 2003, intitulado “The Drake Equation Revisited” (“A Equação de Drake Revisitada”). O fórum apresentou as questões sobre a estimativa das probabilidades de se encontrar
    more...
  • The Drake Equation Revisited: Part I
    The NASA exobiology branch sponsored a public forum in Palo Alto, CA, on Tuesday, August 26, 2003, entitled, "The Drake Equation Revisited." The forum addressed the questions of estimating the probabilities for finding intelligent life in the universe. Here is the first in the series
    more...
  • Terrestrial Tip of the Cap
    What makes a planet habitable has much to do with its compatibility with liquid water. Other than this range that might define a temperate climate, a second precondition for life is likely some change of seasons. Seasonal melting and freezing of water, in turn,
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  • Earth’s Radio-Wave Halo
    The Allen Telescope Array, planned for completion in the next few years, promises a robust and novel use of off-the-shelf radio dishes. Deployed in northern California, this dish array is one intriguing technology that Dr. Jilll Tarter describes.
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  • Stellar Countdown Yields Skymap
    In March, three Berkeley scientists set out to double-check the most promising signals found so far from the world's largest distributed computing project, SETI@Home. Following up on what is an equivalent of a million years of computation (or CPU units), their skymap of interesting
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  • Search for Life in the Universe II
    In this two-part essay, Director of the Hayden Planetarium, Neil deGrasse Tyson, reflects on the scientific and cultural implications of finding life elsewhere in the cosmos.
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  • Search for Life in the Universe I
    In this two-part essay, Director of the Hayden Planetarium, Neil deGrasse Tyson, reflects on the scientific and cultural implications of finding life elsewhere in the cosmos.
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  • Dirtside Simulation
    What would the future hold for a society where reputation was all that mattered? Astrobiology magazine reviews award-winning science-fiction from Cory Doctorow, Outreach Coordinator for the Electronic Frontier Foundation.
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