A day in the year of the life of the solar system …
While the animation above is pretty sweet, you’ll really want to go play with the interactive version of this solar system simulator.
You can punch in any year, and let the orbits proceed fast or slow. Use it to learn how the planets align (and don’t), how different bodies orbit, or as an excuse to stare at your screen with your mouth open in amazement. You can even click the “Tychonian” button to see what an Earth-centric solar system would look like! Go ahead, punch in any year in the past or future, and see what the solar system looked like on a given day.
(via Dynamic Diagrams)