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Strange signal from space may solve one of science's greatest mysteries

5/26/2015

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A clue to one of the biggest questions in cosmology — why regular matter, rather than antimatter, survived to fill the universe — may have been found in data from a NASA space telescope.

A new study suggests that gamma-rays (high-energy light) detected by the Fermi Gamma-ray Space Telescope show signs of the existence of a magnetic field that originated mere nanoseconds after the Big Bang. In addition, the researchers on the new study speculate that the magnetic field carries evidence of the fact that there is far more matter than antimatter in our universe.

The detection of the signal in the Fermi data is currently too weak to be claimed as a "discovery," and no other solid evidence of an early-universe magnetic field exists. But if the signal bears out and the researchers' speculations withstand scrutiny, the work could help scientists understand why the observable universe is made primarily of matter and not antimatter. [The Gamma Ray Universe: Photos by the Fermi Telescope]

Matter vs. antimatter It's easy to take matter for granted. The stuff that makes up our planet and everything on it — as well as our sun and all the other visible objects in the universe — never seems to be at risk of disappearing in an instant. But around the time our universe was born, there may have been just such an instant — a moment when matter won out and something called antimatter did not.

Cosmologists think the universe started with equal parts matter and antimatter; when matter and antimatter collide with great force, they annihilate each other. So, what happened to most of the antimatter (it still exists in the universe, but in very small quantities)? Why did matter dominate? It's one of the biggest questions plaguing modern science.

Tanmay Vachaspati, a professor of physics at Arizona State University and his colleagues think they have found a clue to this mystery. They say that a signal in the Fermi gamma-ray data suggests an overwhelming production of matter, but not antimatter, in the early universe. They detailed their findings in a paper published online May 14 in the journal Monthly Notices of the Royal Astronomical Society.

A universal magnetic field The team claims to have identified a sort of "twisting" of the gamma rays that the Fermi telescope detects, and the researchers say the detection of this twisted gamma-ray signal is verified in their paper.

Vachaspati and his colleagues' interpretation of what that signal means boils down to this: The twisted gamma-rays are evidence of a magnetic field that has been present in the universe since less than a second after the Big Bang. This magnetic field has a left-hand orientation, and that is evidence of the overwhelming production of matter in the early universe, as antimatter would have produced a right-hand orientation, they said. [Most Amazing Gamma Ray Sources in the Universe]

There are many particle-physics events that must occur for this magnetic field to leave an imprint on the gamma-rays, the researchers .

Scientists don't know for sure if this kind of "primordial" magnetic field exists in our universe. There have been magnetic fields observed in some galaxies and galaxy clusters that could be magnifications of a magnetic field that already existed in the universe, and to demonstrate that it exists would be a fascinating discovery, scientists say.

The discovery of this left-hand signal was first reported by Vachaspati and colleagues in a paper published in 2014.


FoxNews

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Former Obama Pilot who saw UFO talks to Fox News

5/23/2015

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IUFOC UFO Researcher of the Year 2015: John Burroughs

5/23/2015

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    Authors

    Earl Grey Anderson
    MUFON Los Angeles Board of Directors

    Jeff Krause
    State Director
    Southern California, President/CEO MUFON Los Angeles, State Section Director MUFON Los Angeles, State Section Director MUFON Tri-County, MUFON STAR Team, MUFON Field Investigator.

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