Runaway planets zoom at a fraction of light speed

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Runaway Planets Zoom at a Fraction of Light Speed
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Seven years ago, astronomers boggled when they found the first runaway star flying out of our galaxy at a speed of 1.5 million miles per hour. The discovery intrigued theorists, who wondered: If a star can get tossed outward at such an extreme velocity, could the same thing happen to planets?

Source:Science Daily
 
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