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Saturday, September 22, 2012

Hubble Telescope detected the farthest galaxy and never before seen


The Hubble Space Telescope has photographed what is considered the most distant galaxy ever observed a time travel of 13,700 million light years, when our universe was only 500 million years, said Wednesday the space agency NASA.

The image of the galaxy, a red spot in the middle of a huge group of young galaxies, represents the first time the Hubble scrutinizes the border known as the cosmic Dark Age, when the expanding universe went from being a big void to cluster galaxies, stars and gas giant clusters.


"This galaxy is the most distant object we've ever seen with a high degree of confidence," said Wei Zheng, a researcher who has studied the scientific image and Johns Hopkins University in Baltimore.

Zheng said that these images allow studying how it went from the dark age of the cosmos to another in which the materials originated in the Big Bang formed celestial bodies.

The window opened by the Hubble, which has been assisted Spitzer infrared telescope, shows a young galaxy whose light has traveled more than 13,000 million years to reach the two sensors of the NASA orbiting observatories.

This beam of light is a galaxy when the universe was just 3.6 percent of its current age.

To detect a galaxy so far, whose waves in the electromagnetic spectrum are expanding its length to be hardly detectable, scientists have helped the gravitational lens effect, by which a massive body interposed between object and observer deflects and focuses the incident light.

This effect, predicted by Albert Einstein, has been possible due to the presence of a galaxy cluster between the Earth and the distant light detected, thanks to this phenomenon has been magnified 15 times.

Researchers now believe that what we see on Earth is a galaxy that was 200 million years and represented only 1 percent of the mass of the Milky Way, because there was in the early stages of the universe, when he had light.

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