7/07/2008

Planetary cores aquatic

Uranus and Neptune also bring their extravagant droplet. We do not know their internal structure, but it is now generally accepted that have three layers: an atmosphere of hydrogen and helium, a cloak-possibly liquid water, ammonia and methane, and a nucleus with the same composition to which we must add a set rocky. Other scientists are advocating a model of two layers: an extremely dense atmosphere with a 50% water and a rocky core.

We are facing one of the great mysteries of planetology and assumptions soar. Some scenarios suggest even the existence of an ocean superheated located 8,000 km deep.

For its part, the interior of Titan may be composed in part by ice at different pressures and a layer of liquid water. Yet, in our neighbourhood space, the neighbor who takes the palm is certainly Mars.

Million years ago, the arid and dry Red Planet was a very different place we know today. Not only was warmer and more dense atmosphere, but the water ran by its surface. For the Ares Vallis was circulated friolera of 1,000 million cubic meters per second, an amount that leaves nothing in the 300,000 Amazon or the impressive 60 million from the large waterfall that was formed at the opening of the Strait of Gibraltar and that it filled Today is the Mediterranean after this was dry 5.5 million years ago.

Planetology Some even believe that Mars was a big ocean. With 65 million cubic meters and 1,700 meters deep media, the assumption Oceanus Borealis could cover the plains of the northern third of the planet and coexist with a huge South Pole.

No comments: