May the 4th be with NASA: Space agency goes deep on 'Star Wars' day

If you're NASA, you seize every opportunity to chime in about pop culture -- which means going all out for space movies, and the intergalactic holiday known as May the 4th.

In honor of this year's Star Wars day, NASA has posted a list of real planets so fascinating and unfamiliar that they seem right out of the Star Wars universe.

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Since it's NASA, the post is meticulously researched for similarities and parallels to the most famous locations in that fictitious galaxy far, far away. Entries include:

The full post of planet descriptions and images can be found on NASA's Tumblr, along with an introduction to gas giants (Cloud City) and exomoons (Endor), which circle planets outside our solar system.

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