ScienceDaily: Top Science News

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Astronomers find 18 new planets: Discovery is the largest collection of confirmed planets around stars more massive than the sun Posted: 02 Dec 2011 12:58 PM PST Discoveries of new planets just keep coming and coming. A team of astronomers has found 18 Jupiter-like planets in orbit around massive stars. The discoveries further constrain theories of planet formation.

They call it 'guppy love': Biologists solve an evolution mystery Posted: 23 Nov 2011 04:04 PM PST Guppies in the wild have evolved over at least half-a-million years -- long enough for the males' coloration to change dramatically. Yet an orange patch on the male has remained remarkably stable. Why has it remained the same hue of orange over such a long period of time? Because that is the color female guppies prefer.

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