An exoplanet (exo-planet), is an extra-solar (outside of our solar system) planet orbiting a star, other than the Sun, within our Milky Way galaxy.
The Kepler Telescope mission has discovered 4,000+ confirmed exoplanets in all, as of February 2015.
Any planet that navigates around a star, other than the Sun, is an exoplanet.
Many planets (over 200) have been discovered in the nineties that don't go around our Sun. They are exoplanets.
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The planet from where EXO (a korean boyband) came from. It is also EXO's name for their first concert.
EXO-L: wow, the exoplanet must be so lucky to have EXO as its population
EXO-L: did you see that he took his shirt off at EXOPLANET in Seoul?
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