NASA's exoplanet finding Kepler mission has found the smallest yet detected exoplanet. The size of our Moon and smaller than Mercury this was quite a technological feat to pull off.
Known as Kepler-37b the small world is located in Lyra at 210 light years distance and has several other exoplanets in the Kepler 37 system, complete with a star that is similar to our Sun.
Read More About It: http://science.nasa.gov/science-news/science-at-nasa/2013/20feb_tinyplanets/
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