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PremiumVIVAnews -what would happen if a giant asteroid is not hit our planet and destroy the dinosaurs? This question has been clear since a long time and now have started to appear the answer.
As known, there are many factors cause of musnahnya dinosaur from the surface of the Earth's surface. However, echo the death knell for the largest animal ever to live it was the arrival of asteroid-sized about 9.6 kilometers.
A giant Asteroid were to fall in the area that became the Yucatan Peninsula in Mexico, about 65 million years ago. As a result of the collision of the asteroid with the Earth, in the region there are gaping holes that is now known as Chicxulub crater measuring width of more than 180 kilometers.
Shortly after the asteroid struck the Earth hit by mega-tsunami, fires that spread to the entire planet as well as throw dust and particles that are very much into the sky, which resulted in the tertutupnya the Sun for several years and caused global cooling that causes musnahnya dinosaurs and more than 70 percent of other species of living beings.
"If the meteor that does not hit the Earth, and assuming that no other instances of mass destruction, life on this planet is likely still ruled by dinosaurs as well as 160 million years before the musnahnya animals," said Damian Nance, Professor of geoscience of Ohio University, as cited from Life's Little Mysteries, May 14, 2011.
Nance mentions, if dinosaurs are not extinct, primates like us probably will not live. Mammals alone could breed along with breeding dinoasaurus. However, they only occupy a particular ecological zones, and generally narrow grows more or less only of rats at this time.
"Mammals can appear and breed extensively after the plant-eating dinosaur that finally makes the destroyed dinosaur carnivore lost a source of food," said Nance.
The researchers speculated, the smart is also likely to dinosauroid evolved along with the humans. Speculation is based on the relatively large size of the brain of the trodontid species, is found later, which is a similar bird predators.
As known, the dinosaur who managed to survive to the present, with a bird, it's pretty smart. But not smart enough to remain the master of life on Earth.
VIVAnews -Apostolos Christou and David Asher, Armagh Observatory, astronomers from North of Ireland stated that the asteroid some time ago, it has followed the Earth with their move themselves around the Sun for at least 250 thousand last year.
Asteroid named 2010 So16 which has a diameter of several hundred metres it is also the largest asteroid to be around the Earth. Expected, the asteroid has a close relationship with the origins of the planet Earth.
According to astronomers, it will continue to monitor the movement of the Earth at least for 100 thousand to millions of years into the future. These findings are set out in its own journal Monthly Notices of the Royal Astronomical Society.
"The average distance of this asteroid to the Sun is identical to the distance of Earth to the Sun," said Christou, as quoted Cosmosmagazine, from Monday 11 April 2011. "Interestingly, the orbit of the asteroid is also very similar to Earth's orbit," he said.
However, the line taken this asteroid not similar to the Earth. In his travels around the Sun, he made the line shaped like a Horseshoe.
"Asteroid 2010 So16 takes 175 years to complete the journey from the tip of one to the other end on the Horseshoe," said Christou.
This Asteroid, Christou continued, slowed down when entering orbit because the farther from the Sun than the Earth. "When the speed of the asteroid were balanced with the speed of the Earth, the earth does not withdraw it," he said. "Not her asteroid by the gravity of the Earth make the asteroid to be closer to the Sun and it makes the additional speed So16 got."
Currently, the asteroid was at one point that is closest to Earth. Estimated, these asteroids can be seen in the decades ahead. (art)
