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Mar 12

Many Billions of Rocky Planets in the Habitable Zones around Red Dwarfs in the Milky Way

Source: ESO Science Release eso1214


Artist’s impression of sunset on the super-Earth world Gliese 667 Cc.
Image credits: ESO/L. Calçada.

A new result from ESO’s HARPS planet finder shows that rocky planets not much bigger than Earth are very common in the habitable zones around faint red stars. The international team estimates that there are tens of billions of such planets in the Milky Way galaxy alone, and probably about one hundred in the Sun’s immediate neighbourhood. This is the first direct measurement of the frequency of super-Earths around red dwarfs, which account for 80% of the stars in the Milky Way.(read more)

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