Shades of Uranus: Scientists know why the planet and Neptune are different shades of blue

Shades of Uranus: Scientists know why the planet and Neptune are different shades of blue

Why are Uranus and Neptune two different shades of blue?

The two worlds are quite similar in mass to each other – Uranus is about 15 times the mass of Earth, while Neptune is 17 – with nearly identical atmospheric compositions of hydrogen (over 80% each) , helium and methane. But now new research suggests that a ‘stagnant and slow moving’ atmosphere on Uranus allows haze to build up and concentrate on the gas giant, making it a ‘whiter’ cyan blue than the cerulean of Neptune.

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