The planet known for having a tilted axis is Uranus. Unlike most planets in our solar system, which have a relatively upright rotation axis, Uranus is tilted at an angle of about 98 degrees. This unusual tilt causes its poles to face the Sun directly during its orbit, resulting in extreme seasonal variations. The tilt affects the planet's weather patterns and contributes to the unique features of its atmospheric conditions. This distinct rotational characteristic makes Uranus one of the most fascinating planets in our solar system to study.