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Who is the bluest planet?

Published in Astronomy 1 min read

While Earth is often called the "Blue Planet," Neptune is actually the bluest planet in our solar system.

While both Earth and Neptune appear blue, the reasons behind their coloration differ. Earth's blue appearance is primarily due to two factors:

  • Rayleigh Scattering: This phenomenon describes how Earth's atmosphere scatters blue light from the sun more effectively than other colors.
  • Ocean Reflection: The vastness of Earth's oceans also contributes to its blue appearance by reflecting blue light.

Neptune's deep blue hue, on the other hand, is primarily due to the presence of methane in its atmosphere. Methane absorbs red light and reflects blue light, giving the planet its distinctive color. Therefore, though Earth is called the blue planet, Neptune is the bluest planet in our solar system.

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