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Scientists have only searched through a tiny fraction of our galaxy, and with the fast advances in technology, we can expect many more interesting discoveries in the future.     But for now, check out the handy infographic below, courtesy of Space.com, displaying all known types of alien worlds.

Alien Worlds Explained: From Rogue Planets to Super-Earths [INFOGRAPHIC]

Scientists have only searched through a tiny fraction of our galaxy, and with the fast advances in technology, we can expect many more interesting discoveries in the future. But for now, check out the handy infographic below, courtesy of Space.com, displaying all known types of alien worlds.

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