Lit Real life Ryloth/Mon Calamari discovered

http://www.cnn.com/2013/06/26/tech/innovation/new-habitable-planets/index.html?hpt=hp_t3

The planets are likely either rocky or water worlds, meaning they're entirely covered in water. These particular planets also appear to be "tidally locked," meaning the same side of a planet is always facing a star. That means one side of the planet always gets light and the other hemisphere is always in darkness.

 

Update: New observations have proven that these planets do in fact revolve. We were just messing with you before. Stay tuned for more scientific retcons discoveries.

 

Real life does it contradict the EU

 

Considering that new data, from more prolonged imaging or using alternative methods actually could produce this result, it's not really a joke. Tidal locking is dependent upon the masses of the stars and planets involved, and mass numbers for both the planets and the stars are always estimates based on some fairly wobbly assumptions, they could change quite radically.

Tidally locked planets are actually found quite often, in part because current detection methods have significant biases towards locating planets really close to the host star.

 

There's also the possibility of a planet rotating at an odd speed (due to some kind of collision?). Venus has an exceptionally slow rotation for its distance from the Sun- slower even than that of Mercury which is much closer.

Just because a planet "ought" to be tidally locked, doesn't guarantee that it will be.

 

Cool. Still, it is unknown if they provide everything necassary for life, just being inside the habitable zone doesn't mean they contain life. Mars is in the habitable zone of the Solar System and Venus at it's edge, while they don't have anything living on them.