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  1. Astronomy

    Cosmic Triumph: Satellite confirms birth theory of universe

    The most detailed portrait ever taken of the radiation left over from the Big Bang provides fresh evidence that the universe began with a tremendous growth spurt, expanding from subatomic scales to the size of a grapefruit in less than a trillionth of a second.

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  2. 19656

    This article states that the early universe expanded “from subatomic scales to the size of a grapefruit in less than a trillionth of a second” or one picosecond. This would correspond to a velocity many times the speed of light (light only travels about 0.012 inch in a picosecond). How can this statement be reconciled […]

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  3. Earth

    Manufacturers agree to phase out nonstick chemical

    Complying with a request from the Environmental Protection Agency, the companies that make the likely carcinogen perfluorooctanoic acid (PFOA) have agreed to phase out its release worldwide by 2015.