Alien Life

  • Can SETI Probe for Probes?
    Just as our own robots reach out beyond the solar system, searching for life elsewhere may well involve hailing some kind of space artifact in our own neighborhood. At least one style of life search is about looking for the technological evidence of life, rather
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  • Ashes of the Phoenix
    What had become the first systematic attempt to search for another world's intelligent radio communications has wound down. Project Phoenix will transition to more advanced search methods, but its pioneering status has become part of history.
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  • Can Intelligent Life Thrive in Close Quarters?
    Where should SETI researchers target their hunt for other intelligent species? The answer depends in large part on whether planets orbiting dim red-dwarf, or M-class, stars can provide suitable habitats for the evolution of intelligent life.
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  • Questioning The Prime Directive
    It has become somewhat accepted that an extrasolar contact could be interpreted as a good 'artificial' signal if it arose from certain branches of mathematics. If another galactic civilization decided to reach us, they would send a beacon of bleeps akin to the digits of
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  • Tapping the Grid: Interview with David Anderson
    Project leader for the SETI@home program, Dr. David Anderson, talks about the history and challenges of running the world's largest virtual supercomputer. The project searches for anomalies in radio telescope data, as interesting indicators of what might be non-natural radio sources, or qualify as communication.
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  • The Big Crunch: Interview with Dan Werthimer
    Searching for intelligent life elsewhere has challenged this generation of scientists in a way previously inconceivable, requiring the processing power of the world's largest supercomputer. This priceless and vast scientific network is closer than one might naively imagine.
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  • There’s a Hole in My Philosophy
    Planetary scientist, Dr. David Grinspoon, discusses his new book, 'Lonely Planets: The Natural Philosophy of Alien Life', in this multi-part interview on topics ranging from which planets are best for harboring life to speculative topics about levels of advancement a civilization must pass through to
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  • Higher Concepts and Advanced Aliens
    Planetary scientist Dr. David Grinspoon discusses his new book, 'Lonely Planets: The Natural Philosophy of Alien Life,' in this multi-part interview. The topics range from which planets are best candidates for harboring life.
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  • Carl Sagan: The Lonely Pale Blue Dots?
    Planetary scientist Dr. David Grinspoon discusses his new book, 'Lonely Planets: The Natural Philosophy of Alien Life,' in this multi-part interview. The topics range from which planets are best candidates for harboring life.
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  • The Search for Life
    Planetary scientist Dr. David Grinspoon discusses his new book, 'Lonely Planets: The Natural Philosophy of Alien Life,' in this multi-part interview. The topics range from which planets are best candidates for harboring life.
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  • Cracking the Stellar Primer
    If an artificial signal ever were detected from another world, it would almost certainly be encoded or encrypted. Judging by isolated civilizations that contact each other's languages across time and space--such as the ancient Egyptian hieroglyphic writers and modern linguists.
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  • Lonely Planets and Rare Earths
    Planetary scientist Dr. David Grinspoon discusses his new book, 'Lonely Planets: The Natural Philosophy of Alien Life,' in this multi-part interview. The topics range from which planets are best candidates for harboring life.
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  • Lonely Planets: Welcome Earthlings
    Planetary scientist, Dr. David Grinspoon, discusses his new book, 'Lonely Planets: The Natural Philosophy of Alien Life', in this multi-part interview on topics ranging from which planets are best for harboring life to speculative topics about levels of advancement a civilization must pass through to
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  • Arecibo Chronicle
    Getting the big picture in the search for life elsewhere is a challenging balance between technology and philosophy. The SETI Institute's Seth Shostak reports from the world's largest radio telescope, Arecibo, about new signal processing methods.
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  • The Unexplored Cosmos
    Cosmos collaborators, Ann Druyan and astrophysicist Steven Soter, talk about the possiblities for finding life elsewhere and the implications for understanding humanity's own place in the universe.
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