Uranus is known for its unique tilt, as it rotates on its side at an angle of about 98 degrees relative to its orbit around the sun. This unusual axial tilt results in extreme seasonal changes, with its poles experiencing continuous sunlight or darkness for long periods. Uranus's tilt is thought to have been caused by immense collisions with other celestial bodies early in its formation. Unlike most planets, which have a more upright orientation, this unique aspect of Uranus makes it fascinating to astronomers and contributes to its distinct characteristics among the planets in our solar system.