Retrospections

  • A Perfect World I: Tyson
    "Name two things you hope will be true about the world in fifty years. Tell me about an environment in which you personally thrive. Now paint a picture of your ideal world."
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  • Chronology of a Scientific Safari
    The three modern scientific revolutions - the atomic, space, and biological ages - all share key turning points on April 16th. 2003 is the bicentennial of atomic theory.
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  • Selecionadas a partir de dezenas de milhares de perguntas propostas para a Astrobiology Magazine, as melhores estão separadas em um diálogo para leitura que ajuda a guiar para as novas áreas a se explorar. Perguntas-chave continuam a centrar em algumas das mais extremas condições na
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  • Tale of a Comet
    In the next five years, no fewer than five spacecraft will attempt to rendezvous with a comet or asteroid. More than 125 years ago, the visionary author, Jules Verne, described his own incredible version of how astronomers might explore the solar system--from a unique cometary
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  • Mighty Aphrodite
    Earth's twin, Venus, offers life as we know it few safe places on its faint red-glowing surface, which is hot enough to melt lead. But higher in the clouds, small amounts of water and strange ultraviolet absorbers make for a balmy 107 F abode.
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  • When Eden Comes to Titan
    How will the most favorable conditions for life move outward as the Sun enters its brighter, red giant phase? Paleontologist Peter Ward and astronomer Robert Brownlee take a voyage of imagination seven billion years into the future, and come back with a new and distant
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  • 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
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  • Lord of Gondwanaland
    In an ancient time, what happens when a common water-hole brings together the most clever species on our planet with its apex predator? Welcome to the ancient supercontinent of Gondwanaland, where the largest vertebrate carnivore--the gorgon--battles its smartest foe yet--the cynodont.
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  • Hot Martian Heartbeats: Seasonal Valentine
    The Mars Orbital Camera captured these South Pole changes over a two year span, as entire hills and mesas reshaped and dry ice sublimed seasonally. The time-sequence shows the remarkable changing geography of a planet in flux-perhaps moving out of the last Martian Ice Age.
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  • The Universe in Forty Leaps
    Zoom out from a single sodium atom to the edge of the universe. From micro- to mega- in powers of ten on the zoom lens.
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