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An extrasolar planet, or exoplanet, is a planet outside the boundary of the Solar System.

AstrobiologyEdit

Exoplanets are of interest to researchers and ufologists in determining if alien intelligence is possible in interstellar space. Gliese 581 c and HD 113766 are extrasolar planets within potential habitable zones. If Goldilocks conditions exist in those star systems, such exoplanets could be candidates for extraterrestrial life, beyond just extraterrestrial bacteria.

Notable extrasolar planetsEdit

See alsoEdit