Sunsets and sunrises on mars are blue due to large number of dust particles in the atmosphere. Blue light penetrate such atmosphere more effectively, compared to longer wavelengths of yellow and red colors. Also for that reason, during day sky appears orange due to scattering of yellow and red light ¹⁾.

The forth planet of the Solar System is named after the Roman god of war, Mars²⁾, because of it's red hue visible even with the naked eye³⁾.

Mars has two small moons, Phobos (22.2 km, 13.8 mi) and Deimos (12.6 km, 7.8 mi)⁴⁾.