Posted Aug 6, 2012 | Original Source: Justin Moore / NASA
This infographic by NASA explains the recent Mars Curiosity landing.
If a single pixel on your screen equalled about 300 km, the eight planets (sorry Pluto!) would look something like this.
Here’s another chart comparing the size of all major solar system objects. I’ve turned it on its side so that it fits better on the page…
Posted Jun 20, 2012 | Original Source: XKCD
Prior to 1992, the only planets we knew of for certain were the nine (now eight) in our own solar system. However, in recent years, we have discovered many circling other stars. In fact, as of June 2012, we know of 778 extra-solar planets (+8 of our own = 786 total). Here they all are, shown to scale.