Our Place in the Cosmos

We live in a universe that's unfathomably vast! So how vast is vast? To visualize with scale   If our Solar System were the size of a quarter(coin),  then the observable universe would be roughly the  size of the Continental United States. What's more, our universe is still expanding. Cosmic Inflation , a theory proposed by Physicist Alan Guth in the early 1980''s, suggests that after the Big Bang, the early universe went through rapid expansions from an infinitely small point to the largest scale, our vast universe that's teeming with hundreds of billions, possibly trillions of galaxies!   15,000 galaxies in this one image alone... And it bears repeating that our universe is still expanding. Now hold on tight, for now we know, its expansion is accelerating! It just might be that our universe is infinite! Now wrap your mind around this, The Laws of Probability  suggest that all possible arrangements of particles, including those that...