Moons of Uranus Will Collide

Running thousands of computer simulations varying the masses and known orbits of Uranus' moons Cupid and Belinda, researchers find the orbits of the two moons always intersect on relatively short time scales, implying a collision in the planetary system is inevitable sometime between 1000 and 10 million years from now.

Auroras Seen on Uranus

With careful observations using the Hubble Space Telescope, scientists have viewed and photographed auroras  present on Uranus lasting only a few minutes, the first time such phenomena have been captured with an Earth-based telescope.