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WASHINGTON— It is a world wrapped in mystery - the seventh planet from the sun, Uranus, seen up close just once nearly four decades ago by a passing NASA

Uranus takes 84 years to orbit the Sun, and so that last time that planet's north polar region was pointed at Earth, radio telescope technology was in its infancy.

Using ground-based telescopes to examine radio waves, NASA scientists have found strong evidence of a polar cyclone on the ice giant Uranus for the first time.

It is a world wrapped in mystery - the seventh planet from the sun, Uranus, seen up close just once nearly four decades ago by a passing NASA probe and still warily guarding its secrets.

NASA captures a 'smiling' sun NASA shared a video taken by its Solar Dynamic Observatory showing dark patches on the sun, giving the illusion of a ...