Deep Space

  • Hubble Finds Hidden Exoplanet
    Using a new image-processing technique, astronomers have discovered a new extrasolar planet by looking back through archived data from the Hubble Space Telescope. The new technique could help identify additional planets hidden in the more than 10 years of Hubble data currently available.
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  • Generations
    At the most recent NASA Astrobiology Science Conference, a panel of scientists discussed different types of planets where we might find alien life. In part six of this series, the panelists answer audience questions about the origin and evolution of life elsewhere.
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  • Confessions of an Alien Hunter
    After five decades, the search for extraterrestrial intelligence has failed to find any alien signals. SETI researchers are still optimistic that we will one day find evidence for intelligent life somewhere in our galaxy. A new book by SETI scientist, Seth Shostak, reviews the history,
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  • To See a Clear Day From Far Away
    Astronomers are close to discovering Earth-sized planets in Earth-like orbits around distant stars – but the real question is, are they habitable? Do they have Earth-like atmospheres? Such questions may prove very difficult to answer.
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  • Alien vs. Predator
    At the most recent NASA Astrobiology Science Conference, a panel of scientists discussed different types of planets where we might find alien life. In the fifth segment of this series, the panelists address questions from the audience about the search for life on Mars and
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  • Galactic Dust Bunnies Contain Stuff of Life
    Astronomers have found evidence that carbon-rich stars may form at the center of the Milky Way. The research is helping astrobiologists understand how elements necessary for life are formed and distributed through the Universe.
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  • Starlight, Star Bright
    On March 6, NASA launched Kepler, a telescope that will search for distant Earths by studying 100,000 stars simultaneously. But to examine the atmospheres of distant Earths for signs of life, says Sara Seagar of MIT, NASA may need to build a fleet of hundreds
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  • Kepler Ready to Search for Earths
    NASA's Kepler mission has been successfully launched into space. Kepler is designed to find Earth-size planets that may have liquid water on their surfaces. Liquid water is believed to be essential for the formation of life.
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  • Finding Earth’s Twin: No Easy Task
    Are there other Earths out there -- rocky planets capable of supporting life, orbiting sun-like stars at comfortable distances? NASA is about to launch a telescope designed to find the answer.
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  • The Case of the Missing Asteroids
    Scientists have determined that the main asteroid belt between Mars and Jupiter should contain more asteroids that we actually observe today. The missing asteroids may be evidence of an event that occurred as the giant planets migrated to their present positions.
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  • A Sprightly Explanation for UFOs
    Scientists have discovered a natural explanation for "UFO" sightings in our planet's atmosphere. The phenomenon is caused by thunderstorms, which can cause mysterious "sprites" that zip across the sky.
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    Os cientistas descobriram uma explicação natural para avistamentos de “OVNI” na atmosfera do nosso planeta. O fenômeno é causado por trovoadas que podem causar misteriosos sprites que sibilam pelo céu.
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  • Countdown to Alien Life
    At the most recent NASA Astrobiology Science Conference, a panel of scientists discussed different types of planets where we might find alien life. In part four of this series, the panelists discuss the time it will take for us to discover alien life in
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  • Technology Worlds
    At the most recent NASA Astrobiology Science Conference, a panel of scientists talked about planets where alien life might be found. In the third segment of this series, Jill Tarter describes different kinds of Technology Worlds.
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  • Rocking the Cosmic Cradle
    New research tools are yielding information about the formation of planets and the production of complex molecules in interstellar space. The data will not only help astronomers understand how distant solar systems form, but also whether or not these systems contain important chemical precursors for
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