Hints of a new solar system
It is in the highest degree unlikely that this earth is the only one to have been created.
Lucretius, 1st century B.C.
Vega is one of the brightest stars in the summer sky; in the Northern Hemisphere it is visible almost directly overhead in the constellation Lyra. About 60 times as luminous as the sun, this glowing beacon is often used by astronomers to calibrate their instruments and judge the brightness of other celestial bodies. Now scientists have another reason to keep an eye on this prominent star. Last week Caltech's Jet Propulsion Laboratory announced that an orbital...
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