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.

Comments

Re:We Really Don't

[Anonymous Coward]

LOL. Hypothesis is just a fancy way to say "here's my guess". Whether put forward by Joe Schmoe or Johnatan P. Schmoe, PhD it means the same thing.

Re:Bullshit

[EmagGeek]

"I work in a cosmology department."

That's pretty cleverly-worded there. You could be a sophomore year co-op student, or a janitor for all we know. You've made an appeal to authority (fallacy) on an incredibly vague claim of authority, and then supported your argument with Internet comics.

Weak-ass..

Re:We Really Don't

[Anonymous Coward]

There is a world of difference between Joe guessing what happened in the early days of the universe and a scientist that has devoted several years of his life studying the matter putting forth a hypothesis of what happened.

Not really.