Deep Space

  • Moon, Planet or Star?
    A strange miniature solar system may be composed of a star only slightly larger than a planet. At this scale, are the celestial objects that orbit it, planets or moons?
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  • Radio Free Earth
    In Part Three in the series on stellar and terrestrial evolution, Neil deGrasse Tyson, Director of the Hayden Planetarium and host of the PBS/NOVA Series "Origins", discusses the limits of radio searches for extraterrestrial life.
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  • Templating Ourselves
    In Part Two in the series on stellar and terrestrial evolution, Neil deGrasse Tyson, Director of the Hayden Planetarium and host of the PBS/NOVA Series "Origins", discusses the human tendency of being self-centered, and how that can shape our reality and cloud our vision
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  • The Little Bang
    Clear evidence in a Chinese meteorite for the past presence of chlorine-36, a short-lived radioactive isotope, lends further support to the controversial concept that a nearby supernova blast was involved in the formation of our solar system.
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  • The Origins Umbrella
    In Part One in the series on stellar and terrestrial evolution, Neil deGrasse Tyson, Director of the Hayden Planetarium and host of the PBS/NOVA Series "Origins", describes the origin and evolution of astrobiology and its public interpretations.
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  • Floating Planets Put in their Place
    According to new results from a powerful southern sky telescope, astronomers may have overestimated the number of young "brown dwarfs" and "free floating" extrasolar planets. Brown dwarfs are objects 75 times more massive than Jupiter but not massive enough to burn as stars.
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  • Race for Pale Blue Dot Image Quickens
    Astronomers announced the first results of a search for extrasolar planets and brown dwarfs in an unlikely place--the stellar graveyard. A research team found two candidate planets in its survey of 20 dead stars--white dwarfs at distances between 24 and 220 light-years.
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  • Hubble Spies New World
    In the southern constellation Hydra, about 225 light-years away orbits what may be a planet and its parent brown dwarf star. Because an extrasolar planet has never been directly imaged before, this remarkable observation required Hubble's unique abilities to do follow-up to test and validate
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  • Our Cosmic Self-Esteem
    Astronomer Royal, Sir Martin Rees describes how for the first time, humans as a species may start to change in observable ways within single lifetimes and under some loose control of our own influence. If this future plays out, the future itself becomes more difficult
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  • Listening for ET: Two Decades
    The SETI Institute predicts that we'll detect an extraterrestrial transmission within twenty years. Within a year, the first thirty dishes of a huge telescope array will be operational, forming the basis of a giant ear that listens for intelligent beings in space.
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  • News_Image_244
    SETI Institute (Instituto SETI) prevê que detectaremos transmissão extraterrestre dentro de vinte anos. Dentro de um ano, as primeiras trinta antenas de um enorme conjunto de telescópios estará operacional, formando a base de uma orelha gigante que procura por seres inteligentes no espaço.
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  • Before the Beginning
    Astronomer Royal, Sir Martin Rees discusses the limits to our knowledge of what might have preceded the big bang. Everyone asks the question: what was 'there' the instant before everything came to be?, but the question may not go as deep as the answers it
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  • New Worlds, Living Large
    Counting down the top ten astrobiology stories for 2004 highlights the accomplishments of those exploring Mars, Saturn, comets, and planets beyond Pluto. Number three in this countdown was the remarkable progress in discovering new planets in other solar systems.
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  • Not So Nebulous
    For the first time, a team of astronomers based in Germany has detected the presence of magnetic fields in the central stars of four planetary nebulae. Planetary nebulae are expanding gas shells that remain after Sun-like stars eject their outer layers at the end of
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  • Our Cosmic Patch
    Astronomer Royal, Sir Martin Rees talks to Astrobiology Magazine about the conditions for life. How unique is our world? Is the universe itself just the byproduct of many failed, sterile or stillborn universes that might have preceded it?
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