We now have a good idea about the makeup of Uranus’ atmosphere

Uranus, the seventh planet in our solar system, has revealed new insights through extensive observations from NASA’s Hubble Space Telescope over two decades. It is primarily composed of hydrogen, helium, methane, water, and ammonia, with methane contributing to its unique blue-green appearance. The planet's axial tilt, nearly parallel to its orbital plane, results in its distinctive seasons lasting approximately 42 years each due to slow rotation. This research deepens our understanding of Uranus’s atmosphere dynamics and seasonal cycles, offering a clearer picture despite the vast distances from which we view it.