TWO PLANETS, ONE SUN
Even though Mars is called the "Red Planet", the blue sunset is snapped by Curiosity presently doing research on Mars, and the red sunset is of Earth.
This picture evokes humanity's perennial longing to discover our neighbour. Mars is the only other planet where we can observe the Sun, our star-Mars' and Earth's-to set so identically that the two worlds seem interchangeable.
Photo credit: NASA
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