First-ever photo of stormy vortex at Uranus' north pole captured by NASA.

Astronomers using the Very Large Array (VLA) of radio telescopes in New Mexico have detected a vortex of relatively warm air swirling beneath Uranus' clouds, providing strong evidence for the existence of a cyclone anchored at the planet's north pole. Polar vortices seem to be a common trait of all planets with atmospheres, at least in our solar system. The discovery of a northern vortex on Uranus was made through the detection of thermal emission in the form of radio waves.