Planet Hunters

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Description

For millennia, humans studying the stars had no idea if there were planets outside our solar system, let alone ones similar enough to ours to sustain life. The first extra-solar planet - or exoplanet - was only discovered in 1995. Now, a new space-based telescope has discovered thousands more, and some of them may be just like Earth. If the Kepler Space Telescope's discoveries are verified, and if what is true for one randomly chosen area of the cosmos is true throughout, then our universe is probably full of habitable planets. This discovery would have enormous implications for the possibility of extra-terrestrial life?