Uranus’ moon Ariel has a mean radius of 578.9 ± 0.6 km. Its interior may be differentiated into a rocky core surrounded by an icy mantle, and a surface of crystalline water ice and carbon dioxide (CO2)

 
Uranus' moon Ariel has a mean radius of 578.9 ± 0.6 km. Its interior may be differentiated into a rocky core surrounded by an icy mantle, and a surface of crystalline water ice and carbon dioxide (CO2)

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