As a cool bit of marketing, Destiny has kicked off a special website called "Planet View," where you can go get a little more background on the game's story and lore. You'll be able to explore three locations -- Venus, the moon, and Mars.
If you explore enough and click on everything, you'll unlock a special emblem for your troubles. Or, if you're not into working for it, you can follow this link to the code, which was unveiled by a Redditor yesterday.
Planet View [Destiny]