I just found an astronomy-related blog that I am checking out. “Astro Bob” is posting beautiful pictures, interesting videos, and giving very clear explanations of complex topics!
Here is an illustration that I found there. It’s fascinating to me that physics can make predictions about what happened just instants after the Big Bang. It has to do with atoms congealing out of a quarky quantum soup — of course it’s going to happen quickly. Then after we have atoms, gravity goes to work, and things move a lot slower.
Click to see larger version, though it’s still not life-sized ;)
Illustration found here on Astro Bob’s blog.