Space is big. It's so incredibly big, and so empty, that it can be hard for any of us -- even scientists -- to really emotionally grasp it. This site shows us one of those things that we almost never see, and for good reason: a scale drawing of the Solar System, with the Moon being one pixel across. Scale drawings you normally see will either show the planets to scale, or the distances between them to scale, but not both; if you show them both to the same scale, well... you're going to have a long way to scroll. Worth makes the time pass with little remarks and thoughts on the way.
The way to Pluto, that is. This map doesn't show any of the trans-Plutonian dwarves; you would have to scroll for a long, long
time to get to them. (See http://blogs.scientificamerican.com/guest-blog/2013/07/15/you-havent-so-much-lost-a-planet-as-gained-five-dwarves/
So as you move off into the interplanetary void, just remember:
Space is big
Space is dark
It's hard to find
A place to park.