The Scale of the Universe
If you want to know the size of everything in the universe, you’ve come to the right place. Includes the Horsehead Nebula, HIV virus, and more on both ends of the scale. At the smallest there is Quantum Foam, String (physicists’ string not kite), and the Planck Length, which has nothing to do with carpentry. At the big end there’s the observable universe couched in the estimated size of the whole universe. So, what’s outside of that? All is in a scrollable animation. Click on anything and learn more about it. Did I mention that this is really, really cool? It is.