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How Do We Know the Timeline of the Universe?

StartsWithABang writes The history of the Universe happened in a well-known order: inflation ends, matter wins out over antimatter, the electroweak symmetry breaks, antimatter annihilates away, atomic nuclei form, then neutral atoms, stars, galaxies, and eventually us. But scientists and science magazines often publish timelines of the Universe with incredibly precise times describing when these various events occur. Here's how we arrive at those values, along with the rarely-publicized uncertainties.

3 of 153 comments (clear)

  1. We don't by Anonymous Coward · · Score: 4, Funny

    We pretend we do, but it was actually re-created yesterday after the reboot of God's Second Life server farm.

  2. Re:Doesn't really answer the question by viperidaenz · · Score: 4, Funny

    Think of it as a perfect sphere.

  3. Re:Doesn't really answer the question by Anonymous Coward · · Score: 2, Funny

    Wrong. All the way down it's turtle shit, also known as 'dark matter'.