Alphonse Swinehart:

In our terrestrial view of things, the speed of light seems incredibly fast. But as soon as you view it against the vast distances of the universe, it’s unfortunately very slow. This animation illustrates, in realtime, the journey of a photon of light emitted from the surface of the sun and traveling across a portion of the solar system, from a human perspective.

This visualization of the speed of light and the realization that, on a galactic scale, it’s actually really slow, is all kinds of mind boggling.