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Worlds Apart

Throughout history, only one Earth has been known to exist in the universe. Soon there may be another. And another. And another.

/2009/12/new-earths/img/01-gliese-714.jpg /2009/12/new-earths/img/earths-60-01.jpg Art by Dana Berry, Sources: Michel Mayor, Geneva University; Geoff Marcy, UC Berkeley http://pictopia.com/perl/ptp/natgeo?photo_name=1273589 /2009/12/new-earths/img/02-dust-ring-714.jpg /2009/12/new-earths/img/earths-60-02.jpg False-color images: Paul Kalas, UC Berkeley, and NASA/ESA /2009/12/new-earths/img/03-focus-714.jpg /2009/12/new-earths/img/earths-60-03.jpg False-color images: Paul Kalas, UC Berkeley, and NASA/ESA Body in Motion The distance Fomalhaut b traveled between Hubble's initial image and one in 2006 (composite below) let scientists calculate the length of its orbit—872 years—around the star Fomalhaut. A gas giant, the planet is no more than three times heavier than Jupiter.]]> http://pictopia.com/perl/ptp/natgeo?photo_name=1270490 /2009/12/new-earths/img/04-kepler-launch-714.jpg /2009/12/new-earths/img/earths-60-04.jpg Photograph by Malcolm Denemark, Florida Today