The planet known for having a unique tilt that causes extreme seasons is Uranus. This ice giant has an axial tilt of about 98 degrees, meaning it rotates on its side compared to its orbit around the Sun. As a result, Uranus experiences severe seasonal variations in temperature and sunlight, with each pole getting 42 years of continuous sunlight, followed by 42 years of darkness. This unusual tilt leads to extreme and complex weather patterns, including intense winds and storms. Uranus's atmosphere is mainly composed of hydrogen, helium, and methane, which contributes to its distinctive blue-green color due to methane absorbing red light.