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A large asteroid passes 'skimming' the Earth

It was about 40 meters in diameter.
on Monday flew to 60,000 kilometers of the Pacific.
came to be seven times closer than the moon.

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The hypothetical impact of an asteroid hit the Earth has been an inspiration for science fiction films, although not impossible to happen.

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In fact, an asteroid between 30 and 40 meters in diameter, a size equivalent to a ten-story building, spent Monday and 60,000 miles of the southeast Pacific, a distance seven times closer than the moon.

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Rob McNaught of the Siding Spring Observatory (Australia), detected the asteroid, called 2009 DD45, on Friday, saying that would miss the Earth "by little."

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"No object of this size has never been observed so close," he said.

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Peter Brown, an astronomer at the University of Ontario (Canada), said it is the one that has come since 1973 and has a similar size to the Tunguska , which ended in 1908 with 2,000 square kilometers of forest in Siberia.

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Salvador Sanchez, director of the Observatory Astronomical Mallorca (OAM), explained to 20 minutes with that diameter "could wipe out 3,000 square kilometers, equivalent to the island of Mallorca."

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According to Sanchez, were found about a thousand dangerous asteroids, while noting that the concern is "the 300,000 objects that cross Earth's orbit and have not been discovered."

. Could
avoid a crash?

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Salvador Sanchez, the ATO said that the United States in 2007 developed a protocol for risk if a large asteroid collision.

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Sanchez says that if you look at the asteroid 15 days in advance can avoid a collision using rockets tugs, which would push to change the orbit.

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With less time, "the only option is nuclear destruction."

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NASA launches the Kepler telescope looking for planets similar to Earth

The U.S. space agency NASA launched from Cape Canaveral on Friday Kepler telescope mounted on a Delta II rocket, on a three-year mission to find planets similar to land in areas near the Milky Way.

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The rocket blasted off from Cape Canaveral, Florida (southern U.S.) at 22H49 (03h49 GMT on Saturday), according to a report from NASA and 62 minutes later entered into orbit successfully.

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The separation of the third stage of the Delta II rocket as it was planned to 721.53 km in altitude.

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Kepler will observe the same point in space for three and a half, or about 100,000 stars in the constellations Cygnus and Lyra in the Milky Way.

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At a cost of nearly $ 600 million, will be the star of the first NASA mission to find Earth-like planets orbiting at distances similar soles able to hold water and therefore high chances of there life.

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"This mission seeks to answer a question that is as old as time - are there other planets like ours out there?" Said Ed Weiler, associate administrator of the board of NASA missions.

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"It is not only a scientific mission is a historic mission."

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The telescope will look in particular relatively small planets, which are neither so hot nor so cold that are rocky and have liquid water, which are conditions for life to exist eseciales said William Borucki, principal investigator for the Kepler project research center NASA Ames, in California (West).

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"Kepler is a key element in NASA's efforts to discover planets that can be found similar to Earth's atmosphere," he said last month at a press conference Jon Morse, director of the Astrophysics Division of the agency space.

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Equipped with the largest camera ever launched into space-a set of equipment of 95-megapixel CCD-known as the Kepler telescope can detect faint glow stars, barely perceptible, seen with the passage of the planets.

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The device weighs 1.03 tons and has a primary mirror 1.4 meters in diameter and opening of 0.95 meters.

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"If Kepler looked a little town on Earth at night from space, could detect a porch lights if someone passes in front," said project manager James Fanson.

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astrophysicist Alan Boss believes that Kepler or the French satellite COROT, which has been in orbit since 2006, can find planets the size of Earth in the coming years.

. COROT
and discovered the smallest alien planet yet. With a little more than twice the diameter of Earth, the planet is very close to its star and is very hot, astronomers reported this month.

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The astronomer Debra Fischer of San Francisco State University, said the NASA mission is a cornerstone in understanding what types of planets formed around other stars.

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The information as required by Kepler said, "will help us to the day when we can see a pale blue dot as our planet, orbiting another star in our galaxy."

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AFP.