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A Equação de Drake Revisitada: Parte I
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| Topic: Alien Life |
09/29/03 |
| Summary: 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 vida inteligente no Universo. Aqui está a primeira de uma série de apresentações. |
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Terrestrial Tip of the Cap
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| Topic: Alien Life |
08/31/03 |
| Summary: 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, depends on the axial tilt of the planet. |
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Earth's Radio-Wave Halo
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| Topic: Alien Life |
08/26/03 |
| Summary: 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
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| Topic: Alien Life |
07/25/03 |
| Summary: 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 candidates focuses on the pulses. |
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Search for Life in the Universe II
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| Topic: Alien Life |
06/25/03 |
| Summary: 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
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| Topic: Alien Life |
06/23/03 |
| Summary: 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
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| Topic: Alien Life |
05/18/03 |
| Summary: 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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Star Light, Star Bright...Any Oxygen Tonight?
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| Topic: Alien Life |
03/17/03 |
| Summary: The possibility of complex life on other worlds may depend on green plant photosynthesis. But could this sunlight-dependent process evolve on worlds that orbit stars different from our sun? |
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SETI@home's Serendipity To-Do
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| Topic: Alien Life |
03/16/03 |
| Summary: The idle processing power of millions of computers, turned to look for a stray signal from billions of stars, now has a target: 150 promising signals to be handled again in a new SETI@home project. |
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Serendipidade Agitada do SETI@home
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| Topic: Alien Life |
03/16/03 |
| Summary: Depois da computação de mais de um milhão de anos de dados em mais de 4 milhões de computadores em todo o mundo, o SETI@home (SETI em casa), que processa dados em busca de sinais inteligentes do espaço, produziu uma lista de fontes de rádio que merecem uma segunda olhada. |
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