NASA JPL @NASAJPL NASA's Kepler discovers a rocky exoplanet âthe smallest one found outside our solar system. http://bit.ly/gDEvif 2011-01-11 06:39:24
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Observable Universe as a function of time and distance, in context of the expanding Universe The universe's size is unknown, and it may be infinite in extent.[14] Some parts of the universe are too far away for the light emitted since the Big Bang to have had enough time to reach Earth or space-based instruments, and therefore lie outside the observable universe. In the future, light from distant
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