We might be finding a new nickname for the red planet. Recently, NASA’s Curiosity Rover took the first colored image of a sunset on Mars.

You would think that the red planet would have a red sunset, but apparently that’s not the case. The image shows a sunset with a bluish hue. Scientists say dust in Mars’ atmosphere is to blame. Very fine particles allow blue light to push through the atmosphere more effectively than the longer wavelength colors like yellow and red.