With the discovery of a "mini" solar system in the news (click here for previous article) Shaun Saunders sends in an article speculating on the concept that Earth-like planets in other systems may be very common.
Rocky planets like Earth could be found around most sunlike stars in our galaxy, new research suggests, further raising hopes that scientists will someday find E.T. or at least primitive life beyond our solar system. The finding is based on an analysis of dust around 309 stars with masses comparable to our sun. (Scientists) found "warm" dust, between minus 280 and 80 degrees Fahrenheit (-173 to 27 degrees Celsius), orbiting at an estimated distance from their stars in the same range that Earth and Jupiter are found in our solar system. This allowed them to infer the presence of colliding larger rocky bodies, and to estimate that at least 20 percent and up to as many as 60 percent of the sunlike stars in our galaxy's disk could give rise to rocky planets like Earth.
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Rocky planets like Earth could be found around most sunlike stars in our galaxy, new research suggests, further raising hopes that scientists will someday find E.T. or at least primitive life beyond our solar system. The finding is based on an analysis of dust around 309 stars with masses comparable to our sun. (Scientists) found "warm" dust, between minus 280 and 80 degrees Fahrenheit (-173 to 27 degrees Celsius), orbiting at an estimated distance from their stars in the same range that Earth and Jupiter are found in our solar system. This allowed them to infer the presence of colliding larger rocky bodies, and to estimate that at least 20 percent and up to as many as 60 percent of the sunlike stars in our galaxy's disk could give rise to rocky planets like Earth.
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