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    Quintessence: The Mystery Of Missing Mass In The Universe

    By: Lawrence M Krauss

    Date Released

    Out of Print

    Updated Edition of 'The Fifth Essence'.

    The classic book on the Dark Matter problem, updated after ten years to include the significant new theories of the 1990s.

    What is the universe made up of? Will the universe continue to expand forever; reverse its expansion and begin to contract; or reach a delicately poised state where it simply persists forever?

    The answers depend on the amount and properties of matter in the universe, and that has given rise to one of the great paradoxes of modern physics: there is too little visible matter to account of the behaviour we can see in the universe. Over 90% of the universe consists of this "missing mass" or "dark matter" - what Lawrence Krauss termed the fifth essence.

    In this new edition of 'The Fifth Essence', retitled 'Quintessence' after the now widely accepted term for dark matter, and with a new introduction, epilogue and chapter updates, Krauss shares with us one of the most stunning discoveries of recent years: an anti-gravity force that explains recent observations of a perpetually expanding universe.

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