The youngest planet ever detected -- a baby less than one million years old -- may have been discovered by NASA's Spitzer Space Telescope, scientists say. The possible infant planet was spotted circling a star known as CoKu Tau 4, some 420 light-years away in the constellation Taurus, according to astronomer Dan Watson of the University of Rochester, New York.
The discovery of the possible infant planet was one of three findings by the Spitzer spacecraft, which looks at the universe through infrared light as it trails Earth in its journey around the Sun.
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