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The Five Ages of the Universe
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<p><i>The Five Ages of the Universe</i> is a <a href="/facts/Popular_science/cnhLw9rI">popular science</a> book written by astrophysicists <a href="/facts/Fred_Adams/rXd9nDjr">Fred Adams</a> and <a href="/facts/Gregory_P._Laughlin/jH97d9p3">Gregory P. Laughlin</a> about the <a href="/facts/Future_of_an_expanding_universe/ySer1Ltq">future of an expanding universe</a> first published in 1999. </p>