Essays

  • 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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  • 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.
    more...
  • 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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  • Anybody Out There? Part II
    Famed neurologist Oliver Sacks is the author of many books, including "The Man Who Mistook His Wife for a Hat" and "Uncle Tungsten". In this second of a two-part essay on astrobiology, Dr. Sacks muses on the possibility of life on other worlds.
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  • Anybody Out There? Part I
    Renowned neurologist Oliver Sacks is the author of many books, including "The Man Who Mistook His Wife for a Hat" and "Uncle Tungsten". In this first of a two-part essay on astrobiology, Dr. Sacks discusses his early fascination with the possibility of
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  • The Search for Life in the Universe
    Neil deGrasse Tyson discusses the search for life in the Universe. Are we alone?
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  • SETI and the Search for Life
    Christopher F. Chyba of the SETI Institute discusses the search for life in the Universe. Are we alone?
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  • Are We Alone? Where are our Nearest Neighbors?
    Edward Weiler, NASA's Associate Administrator for Space Science discusses the search for life in the Universe. Are we alone?
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  • Advances in our Understanding of Life
    Over the past two decades, advances in a number of scientific disciplines have helped us better understand the nature and evolution of life on Earth. These scientific developments also have helped lay the foundation for astrobiology, opening up new possibilities for the existence of life
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