Astronomers using the Kepler telescope found the first known double-star planet just last September Kepler-16, a gassy oddball orb the size of Saturn that circles a pair of stars 200 light-years from Earth, like the planet Tatooine in the "Star Wars" films.

WSJ: Galaxy Hosts 100 Billion Planets, in New Estimate

Astronomers using the Kepler telescope found the first known double-star planet just last September Kepler-16b, a gassy oddball orb the size of Saturn that circles a pair of stars 200 light-years from Earth, like the planet Tatooine in the "Star Wars" films.

WSJ: Galaxy Hosts 100 Billion Planets, in New Estimate

Using nineteenth-century birth rates, he projected that the number of people on the planet would double three times every century.

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By contrast, Microsoft, one of the most successful companies on the planet, has only managed to double its share price over the same stretch of time.

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By contrast, Microsoft (nasdaq: MSFT - news - people ), one of the most successful companies on the planet, has only managed to double its share price over the same stretch of time.

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The planet, 200 million light years away, orbits two stars rather than one and so enjoys a double sunset.

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