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  • Planets in ‘habitable zone’ may provide answers
    By on October 25, 2010 | Comments Off  Comments

    The Gliese 581 system has been making headlines recently for the most newly announced planet that may lie in the habitable zone. Hopes were somewhat dashed when we were reminded that the certainty level of its discovery was only 3 sigma (95%, whereas most astronomical discoveries are at or above the 99% confidence level before major announcements), but the Gliese 581 system may yet have more surprises.


  • 7722 sq. miles of Dead Zone Along Coast of Louisiana & Texas
    By on August 2, 2010 | Comments Off  Comments

    No evidence that the annual low-oxygen area was affected by the Gulf oil spill