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Monday, May 28, 2012

Tyco crater on the Moon


The Moon is still a goal for NASA; on June 10 last the satellite NASA Lunar Reconnaissance Orbiter was able to take this dramatic image thanks to its steep orbital angle of 65 °. The image is the central peak of the crater Tyco in the southern hemisphere of the Moon.Tyco is a place known to fans as it is one of the most outstanding places on the Moon. It is located at latitude 43.37 ° S, 348.68 ° E, and has about 82 kilometers in diameter.
The height of its central peak in the image above rises 2 km above the crater floor and the distance between the bases and is 4.7 km Comber.
The complex central peak of Tyco crater is about 15 km long and is easily visible with a backyard telescope. 

Sunday, May 27, 2012

An object hit the earth


The object had ten kilometers in diameter and scientists have not yet determined exactly whether it was a meteorite or comet, but agree that their average speed was 25 to 30 kilometers per second and left a footprint impact (crater) of approximately 200 kilometers in diameter. 
After impact the earth was plunged into total chaos. Caused large fires occurred due to a temperature of up to 20 thousand degrees Celsius were recorded throughout the Americas, there were earthquakes whose intensities ranged from 14 to 16 degrees Richter and other disturbances that resulted in numerous seismic and volcanic eruptions. In addition, heavy rains were present acidic and formed huge waves, which now are known as tsunami (Japanese word derived from), traveling horizontally at speeds of up to 750 mph and reach between 15 30 meters in height. In the case of the Chicxulub impact has been estimated that the tsunami could have reached heights of 100 to 200 meters, says the geologist José Manuel Gradates Nishimura, investigator assigned to the Program of naturally fractured reservoirs, the Mexican Petroleum Institute (IMP).

The Largest impact craters that have beaten the Earth


Imagine staring at the sky, which gradually gets closer, more and more closely. That point doubling in size every second, to darken the sky. His entry into the atmosphere is accompanied by light and heat, the giant rock wrapped in a meteor full of death that goes directly to you. 
It sounds like the introduction of a catastrophic film, however not very far from reality as these impacts ended the lives of potential witnesses to the event in his time, leaving only the record of their impact on Earth's surface. Today we will show the largest impact craters that have impacted the Earth. In ascending order according to their size, see: