Now, NASA's Kepler mission has discovered a world where two suns set over the horizon instead of just one. The planet, called Kepler-16b, is not thought to be habitable. It is a cold world, with a gaseous surface, and it circles two stars, just like Tatooine. Cue the orchestral music. [More on the Tatooine-ish planet Kepler-16b]
In real life, an extrasolar planet named GJ 1214b lies about 40 light-years away. It orbits a red dwarf star. Scientists think the thick atmosphere of GJ 1214b creates a high pressure environment that keeps water on the surface in a liquid state. That's just speculation, however. [More on watery planet GJ 1214b]
In reality, a class of exoplanets is called "hot Jupiters," large gas giant planets that circle extremely close to their stars, and seem to orbit around their stars in the opposite direction of their parent star's spin.
One hot Jupiter in particular, called TrES-4, is among the largest ever discovered and is a puffy world, meaning it has an extremely low density. The planet's atmosphere could even be escaping into space, which could make it a bit easier for Lando to mine than Bespin. [More on the huge, puffy planet TrES-4]