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National Geographic Documentaries - Finding the Next Earth

Seizoen: 2011 - Aflevering: 74 / 1195 - Eerst uitgezonden: 06 december 2011 - Episode ID: 647806

It took humans thousands of years to explore our own planet and centuries to comprehend our neighboring planets, but nowadays new worlds are being discovered every week. To date, astronomers have identified more than 370 “exoplanets,” worlds orbiting stars other than the sun.