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Thursday, April 23, 2015

The largest object found in the area of mysterious universe

Astronomers find giant objects in the universe. The object is supervoid, has a diameter of about 1.8 million light years. Imagine the size, the distance span from Earth to Pluto have only 5.3 hours of light.
A strange empty hole has been found in the universe as taken by Planck telescope. (Picture from: http://bit.ly/1HpRvUM)
Istvan Szapudi, an astronomer who led the study at the University of Hawaii at Manoa, said that the object of the possibility of "the largest single object ever discovered by man".
The largest object found during Szapudi and the team is studying the phenomenon of "cold spots" in the universe. Areas that have a material 20 per cent and 10,000 fewer galaxies than other areas.

"Cold spots" are areas that are so mysterious, discovered in 2004. Until now astronomers have not been able to describe the origin of these areas as well as its impact on the understanding of the origin of the universe.
The Cold Spot area resides in the constellation Eridanus in the southern galactic hemisphere. The insets show the environment of this anomalous patch of the sky. (Picture from: http://bit.ly/1HpRvUM)
In the middle of the decoding of the "cold spot", in one of the studies, Szapudi and his team found the biggest supervoid this. Compared with other parts of the universe are solid, supervoid been likened to a hole.

However, Andras Kovacs of Eotovos Lorand University in Budapest which also involved the study said, "Supervoid not completely empty. They are just very less dense."

"What we found was the largest ever found supervoid. With the combination of size and emptiness, our supervoid very less dense. We estimate that there are only a few supervoid this magnitude in the universe," said Kovacs.

The discovery of this supervoid little shed some light on the mystery of "cold spots". Areas that may be cooler and have fewer galaxies because of the presence of large supervoid at its center.

The existence of supervoid can decipher the mystery of "cold spots" because the universe continues to expand as it is understood today, photons of light would move more slowly when crossing the void.

Along entered supervoid, the kinetic energy of photons of light is converted into potential energy. Imagine the movement of photons of light entering the supervoid like human climbing the hill.

In a universe that is stationary or not fluffy, the light of photons will get more kinetic energy is so out of supervoid. Thus, the speed will be just as fast. Imagine like a man down the mountain.

However, the expanding universe, the scenario is different. Space will be larger so supervoid, if considered as a hill, will be lower when humans descend. Therefore, the speed of light photons will be slower when it came out.

Although it gives a little insight, supervoid only accounted for 10 percent of the anomalies "cold spot". Thus, the findings have not been able to solve the mystery of "cold spots", it added to the list of questions to be answered.

"Now we have to answer how the void was formed. This is a very rare phenomenon," said Roberto Trotta of Imperial College London who was not involved the study as quoted by The Guardian, on Monday, April 20, 2015. *** [EKA | FROM VARIOUS SOURCES | THE GUARDIAN]
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