The Red Planet, this name has to appear in all articles of the mainstream press on Mars. The same importance that small green men play in the contributions of renowned German newspapers such as Frankfurter Allgemeine Zeitung or Süddeutsche Zeitung published in the Martian meteorite ALH84001.
Undoubtedly, the planet appears red with the naked eye in the night sky, with which our Earth seen from Mars, seems clearly blue, due to the water coverage of 70% in relation to the refraction of light in the atmosphere. With an inverse relationship of the distribution of water and land, however, we would see a brown-green planet in its place from space.
The color of the atmosphere, caused by Rayleigh scattering in the gas molecules, determines only a very small amount of the color of a planet seen from space and also directly on the surface!
Why then the sky of Mars, according to the department JPL-PR of the NASA, must spread that it seems red? This coloration is justified in any case, only with the refraction of the light in the atmospheric dust. But such dust masses in the atmosphere do not prevail for years on a planet that has large clouds of water, fog and icy earth, since the water washes them and they disappear after a short time.
Astronomers of the Hubble Spacetelescope and amateur-astronomers are observing, for a long time, white clouds of water and bluish atmosphere.
