The worlds are a part of a "jam-packed" star system called Kepler-20 where rocky and gaseous planets co-mingle.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/lSXciAgEAwI" height="1" width="1"/>
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The worlds are a part of a "jam-packed" star system called Kepler-20 where rocky and gaseous planets co-mingle.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/lSXciAgEAwI" height="1" width="1"/>