Astronomers over the years could not answer the question why the surface of mercury is so dark from the surface of the moon. Recent studies and observations taken by the MESSENGER probe finally gave a clear response that in addition, threw a lot of light on the fascinating past of this tiny world.
Mercury’s surface contains relatively little iron and titanium, so-at least in theory should be clear, and certainly brighter than our moon. However, it is otherwise, which for a long time I wonder. With the help of the future only the analysis made by the MESSENGER probe apparatus, which showed that this small area and the nearest the Sun globe contains large amounts of graphite. The same from our pencils.
After the dissolution of the puzzles was born immediately following a question why is graphite so abundantly in the surface just mercury. They began to suspect that his source was a comet. With the help of another MESSENGER came in the years 2011-2015, he studied the geology of the planet. On the basis of these observations, it was found that the graphite was formed on the spot.
The surface of the mercury in the several percent consists of carbon, so it is richer than the other rocky planets in the solar system. What’s more, the coal formed deep in the Interior of the globe. It happened, of course, a very long time ago, when its surface was a sea of magma. Scientists believe that it crystallization process is similar like in graphite, which began to create original crust. Its remnants are still below the surface and are discovered by the colliding objects.
Researchers show how little we know about Mercury. The planet, which so far make difficult to give relatively respectful attention. Certainly less than so much faraway from the earth – Pluto.