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  1. Exploring the Universe's 13.8 Billion-Year Journey

    Exploring the Universe's 13.8 Billion-Year Journey

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  2. The Fate of the Universe: What Happens When Protons Disappear? | Joe Rogan & Brian Greene #1428

    The Fate of the Universe: What Happens When Protons Disappear? | Joe Rogan & Brian Greene #1428