The planet known for having a tilt that causes extreme seasons is Uranus. Its axial tilt is about 98 degrees, meaning it rotates on its side relative to its orbit around the Sun. This unusual inclination results in extreme variations in weather and daylight during its long seasons, which each last around 20 Earth years. Uranus experiences intense seasonal changes, with some parts of the planet facing the Sun for extended periods while others experience complete darkness. This unique tilt not only affects its climate and atmosphere but also contributes to its intriguing and distinct characteristics in our solar system.