Yesterday astronomers announced the discovery of the most Earthlike planet ever detected outside of our solar system.
The discovery raises the prospect that the Milky Way galaxy (see photo) is full of planets that could harbor life, the scientists say.
Five times as massive as Earth, the newfound planet orbits its parent star once every ten years. The planet is as about three times as far from its star as Earth is from the sun.
The newfound planet's host star is a red dwarf with about one-fifth the mass of our sun. Red dwarfs have cooler surface temperatures and are smaller, dimmer, and less massive than the sun. They're also the most common stars in our galaxy.
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