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.

Space travel. And look at sun shining down at earth and moon.

30 of the best photographs from 2014

Space travel. And look at sun shining down at earth and moon.

"Star seeds" (Milky Way) Colorful inspiration to add my personal quote onto my body (about the stars in the sky)

"Star seeds" (Milky Way) Colorful inspiration to add my personal quote onto my body (about the stars in the sky)

A dying star. Chi Cygni, shown in this artist's conception, is a red giant star nearing the end of its life. As it runs out of fuel, it pulses in and out, beating like a giant heart and ejecting shells of material. Observations by the Infrared Optical Telescope Array found that, at minimum radius, Chi Cygni shows marked inhomogeneities due to roiling "hotspots" on its surface. (Credit: ESO/L. Calçada)

Close-up photos of dying star show our sun's fate

A dying star. Chi Cygni, shown in this artist's conception, is a red giant star nearing the end of its life. As it runs out of fuel, it pulses in and out, beating like a giant heart and ejecting shells of material. Observations by the Infrared Optical Telescope Array found that, at minimum radius, Chi Cygni shows marked inhomogeneities due to roiling "hotspots" on its surface. (Credit: ESO/L. Calçada)

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