Are Dark Photons the Secret ‘Fifth Force’ Holding Our Universe Together?


Physicists on the hunt for the invisible hand that shapes our universe and the galaxies within it have turned their gaze to the dark side.

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But scientists have long understood that nature is stretched and pulled and smushed and torn by four known forces, so how could another force have hidden from us for so long? Those four known forces make up the cornerstone of our everyday existence: the tyrannical but short-ranged strong nuclear force, which binds atomic nuclei together; the obscure and whisper-quiet weak nuclear force, which controls radioactive decay and talks to the subatomic particles called neutrinos; the bold and bright electromagnetic force, which dominates our lives; and the subtle gravitational force, by far the weakest of the quartet.

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Empty space has more energy than everything in the Universe, combined

“Nothing’exists except atoms and’empty space; everything else is just opinion.” -Democritus of Abdera

When you take a look out at the Universe, past the objects in our own solar system, beyond the stars, dust and nebulae within our own galaxy, and out into the void of intergalactic space, what is it that you see?

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What we normally think of as the entire Universe, consisting of hundreds of billions of galaxies, with about 8,700 identified in the tiny patch of deep-sky shown above. Are Dark Photons the Secret 'Fifth Force' Holding Our ... www.livescience.com / dark -photon-search-comes-up-empty.html Live Science is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission. Learn more Are Dark Photons the Secret 'Fifth Force' Holding Our ... Each one of those galaxies, itself, contains hundreds of billions of stars, just like our own Milky Way, and this is just counting the part of the Universe that’s presently observable to us, which is by no means the entire thing!

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A Star Orbiting in the Extreme Gravity of a Black Hole Validates General Relativity

At the center of the Milky Way galaxy, nearly 26,000 light-years away, a cluster of stars circles close to the supermassive black hole known as Sagittarius A*. As these few dozen stars, called S-stars, approach the black hole’which is about four million times more massive than the sun’its immense gravitational force whips them around faster than 16 million miles per hour. In fact, the gravitational pull of Sagittarius A* is so intense that it warps the light from these stars when they stray too close, stretching the wavelengths toward the red part of the electromagnetic spectrum.

One star in particular, S0-2, gets so close to Sagittarius A* that astronomers have found it to be one of the best natural laboratories for testing the limits of our fundamental theory of gravity: Einstein’s general relativity.

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Publisher: Smithsonian
Author: Emily Toomey
Twitter: @smithsonianmag
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Update: Telescope designed to study mysterious dark energy keeps Russia’s space science hopes alive

*Update, 15 July, 9:55 a.m.: At 6:31 p.m. local time on 13 July, Russia’s Spektr-RG x-ray observatory was launched from the Baikonur Cosmodrome in Kazakhstan. It will begin a 4-year survey of the x-ray sky.

Russia’s beleaguered space science program is hoping for a rare triumph this month. Are Dark Photons The Secret Force Holding Our Universe ... news.jill9.com/exposed/ are-dark-photons-the-secret-fifth -force-holding-our... Videos for Are Dark Photons The Secret ' Fifth 27 : 31 Bloons TD 6 | Secret DARK VENGEFUL SUN GOD Temple Tutorial! | Avatar of the Vengeful Monkey YouTube Each one of those galaxies, itself, contains hundreds of billions of stars, just like our own Milky Way, and this is just counting the part of the Universe that’s presently observable to us, which is by no means the entire thing! Spektr-RG, an x-ray satellite to be launched on 21 June from Kazakhstan, aims to map all of the estimated 100,000 galaxy clusters that can be seen across the universe. Are Dark Photons the Secret 'Fifth Force' Holding ... buffleheadcabin.com/post/187418096267 Are Dark Photons the Secret ‘Fifth Force’ Holding Our Universe Together? — Space.com Containing as many as 1000 galaxies and the mass of 1 million billion suns, the clusters are the largest structures bound by gravity in the universe. Flipboard: Are Dark Photons the Secret 'Fifth Force ... flipboard.com/topic/ photons / are-dark-photons-the-secret-fifth -force-holding-our... Dark Matter. Are Dark Photons the Secret 'Fifth Force' Holding Our Universe Together? space.com - Paul Sutter. Physicists on the hunt for the invisible hand that shapes our universe and the galaxies within it have turned their gaze to the dark side. … Surveying them should shed light on the evolution of the universe and the nature of the dark energy that is accelerating its expansion.

Publisher: Science | AAAS
Date: 2019-06-07T11:07:45-04:00
Author: Daniel Clery
Twitter: @newsfromscience
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String Theory Explained: A Brief Overview for Starters

String Theory is one of the revolutionary and most controversial concepts in physics that aims to unify all of the particles and fundamental forces of nature into one single theory.

We have come a long way from Aristotle’s fundamental element hypothesis to the prevalent Standard Model in our quest to unravel the secrets of the Universe. But the line of thoughts has been pretty linear all this time.

The String Theory challenges the basic approach and presents us with a mind-blowing new perspective to see the reality. Are Dark Photons the 'Fifth Force' Holding Universe ... www.realclearscience.com/2019/09/01/ are_dark _ photons _the_039 fifth _force039... Physicists on the hunt for the invisible hand that shapes our universe and the galaxies within it have turned their gaze to the dark side . Specifically, one team is looking behind every cosmic rock for so-called dark photons , which could transmit a previously unknown force of nature. But first, let’s see what makes String Theory revolutionary and so interesting.

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Date: 2018-08-27T17:21:09-04:00
Twitter: @IntEngineering
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