Nobel Prize Winners Say Universe is Expanding Fast

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Three US-born physicists have discovered on the basis of their studies that the universe continues to expand instead of slowing down 13.7 billion years after the big bang. These findings have gained them the Nobel Prize for Physics for 2011. The scientists are Adam Reiss, aged 41, who is an astronomy professor at John Hopkins University and Space Telescope Institute in Baltimore, Saul Perlmutter, aged 52, of the Lawrence Berkeley National Laboratory and University of California, Berkeley, and Brian Schmidt, aged 44, at the Australian National University in Western Creek Australia. In 1998, the three scientists presented their findings that the expansion universe is speeding up. They have received a total of $1.5 million for their discovery.

These three scientists worked in two teams and studied the light from exploding stars called “supernovas”. With that they were able to measure the universe’s expansion and they found that the light from the supernovas was weaker than expected which indicates that the universe is growing fast. This discovery also raises the question as to what is the force that is pushing the universe to expand.  The answer to this question is not with the scientists today and it is said to be one of the biggest mysteries of physics at the present. They have only named the energy causing the universe to expand as “dark energy”.

The scientists who won the Nobel Prize further say that after a trillion years, galaxies will not be able to see the light from each other and they will be placed farther from each other than the current size of the universe. This also means that the universe will get increasingly colder as matter is placed at a greater distance at different parts of the universe. The committee has also quoted Robert Frost’s poem wondering whether the world will end in fire or ice, saying that the current universe expansion indicates that the world will end in ice.

On the other hand, Robert Krishner, a Harvard astronomer who was part of the team that included Schmidt and Reiss said that they don’t know have sufficient knowledge about this energy to predict its effect on the future of the universe for sure. Krishner also said that the current expansion of the universe maybe halted and reversed and the universe may fall back into itself which is called “the big crunch”.  However the opposite of that could also happen and planets, stars and atoms may rip apart which is called “the big rip”.

This discovery also confirms “the cosmological constant” which was stated by Albert Einstein in his famous theory of relativity.

Well we all hope that our universe has a happy end. Maybe some other scientists will come up with some different findings. Let’s keep our fingers crossed.

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