Why do seasons on Uranus last for over 20 years?
Uranus has a very abnormal orbit, unique in the solar system. The planet is tilted in such a way that its poles face the Sun directly, so that Uranus spins from pinnacle to bottom. It acts like a cylinder that is rotating on its ends instead of rotating on its sides. Scientists believe that some other planet-like object might have crashed into Uranus, knocking it over on to its side. The lengthy seasons are brought about by the planet’s uncommon orbit.
