Neptune and Uranus are so similar that scientists sometimes refer to the distant, icy planets as planetary twins. But these ice giants have one big difference: their color.
원문출처 : https://www.cnn.com/2022/05/31/world/uranus-neptune-colors-scn/index.html
원문출처 : https://www.cnn.com/2022/05/31/world/uranus-neptune-colors-scn/index.html