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UDFj image of the galaxy-39546284 on a section of the

image of the Hubble Ultra Deep Field. Credits: NASA /

ESA / G. Illingworth / R. Team Bowens/HUDF09

"Once upon a time a photon which started from a faraway place shortly after the origin of space and time. "It could well start in this way that tells a story of adventure that ran the light from the galaxy UDFj-39546284 to be detected by the Hubble Space Telescope. These light rays have passed through the cold universe for about 13,220 million of years until finally, a few of these rays have gone to the WFC3 (stands for Wide Field Camera 3) installed in May 2009 in the most famous space telescope in the world.

With the data you offered the finding published in Nature , has reached "a point very close to the formation of the first galaxies that formed about 200 to 300 million years after the Big Bang, "said astrophysicist Garth Illingworth (University of California) at the press conference convened on January 26, NASA announced the discovery. In other words, using light as a time machine, looking at this galaxy are seeing the universe as it was "only" 480 million years after the Big Bang.

The galaxy in question is very small relative to the Milky Way, it is estimated that about 100 times smaller, however the light was obtained from this galaxy is an early stage of evolution. As a result of the analysis of these data, it was discovered that during that time the birth rate of stars in the universe was about 10 times greater than today. This seems to conclude that the universe at that time was engulfed in a wave of creation of celestial bodies.

For detection method has been used redshift of light, this procedure is based on the Doppler effect that occurs in the waves by increasing its wavelength when away from a observation point, stretching it to longer wavelengths, in this case, red. The relationship between the redshift of a body and the distance between us and he became Edwin Hubble demonstrated, a fact which served to demonstrate that the universe is expanding rapidly.

still do not have to launch from the rooftops since the discovery is not fully confirmed because the ability of the Hubble Space Telescope has been pushed to the limit in this discovery, but the data analyzed for optimism. Since the Hubble Space Telescope is about to pass away, perhaps his last major discovery in the case and if so, this instrument has exceeded expectations with which it was launched into space in 1990. Now if we take a step closer to sniff the Big Bang we must have patience specifically to the launch of Hubble's successor, the James Webb Space Telescope (JWST), scheduled for 2014. Until then we have no choice but to keep speculating about the first moments of the Universe.

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