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Science/Tech See other Science/Tech Articles Title: Was Einstein wrong? A FIFTH force of nature governing our universe could be found in the heart of our galaxy Our understanding of the universe is based on four fundamental forces But holes in the theory of gravity suggest that a fifth force of nature may exist Scientists have now discovered the ultimate way to test this extra force They have been tracking the orbits of stars near the Milky Way's centre If these orbits deviate from standard models, then another force is involved Our understanding of the universe, based largely on Einstein's theory of general relativity, relies on four fundamental forces: Gravity, electromagnetic, and the strong and weak nuclear forces. These forces stop planets, molecules and even atoms from tearing themselves apart and are the building blocks for the physical rules of the cosmos. But in recent decades, whispers of a fifth force of nature have surfaced, and if it exists, it could overthrow everything we know about how the universe works. Now, researchers have discovered the ultimate way to test whether this fifth force is real, and it involves tracking the stars at the centre of our galaxy. Scroll down for video The four forces that govern our universe are gravity, electromagnetic, and the strong and weak nuclear forces. Researchers have now discovered the ultimate way to test if an extra, fifth force is real, and it involves a close look of the very centre of our galaxy (artist's impression) +3 The four forces that govern our universe are gravity, electromagnetic, and the strong and weak nuclear forces. Researchers have now discovered the ultimate way to test if an extra, fifth force is real, and it involves a close look of the very centre of our galaxy (artist's impression) STUDYING THE FIFTH FORCE OF NATURE Holes in Einstein's theory of general relativity suggest that either our understanding of gravity is wrong, or that a fifth force of nature exists. Researchers have now found the ultimate test of this mystery force. They will study the orbits of stars as they pass near the supermassive black hole at the centre of our galaxy. At the centre of the Milky Way, where its supermassive black hole lies, gravity is so strong that signs of a fifth force will be easier to detect. If an extra force is influencing the way the stars move, the team will notice as their direction will shift away from predictions made using the standard model of physics. The team have already begun taking measurements, and will follow the stars over the next two decades. The four forces of nature hold the standard model of physics together, which is what we use to describe the behaviour of particles and matter. The smaller forces of the four are strong and weak nuclear forces. While the strong nuclear force holds atomic nuclei together, the weak nuclear force allows the radioactive decay of certain atoms. At the large-scale end of the four forces sit gravity and electromagnetic forces. The electromagnetic force binds molecules together, while gravity stops entire planets and galaxies from being torn apart. But the problem with these four fundamental forces is that, since Einstein's crowning theory surfaced, several holes have been poked in the way we understand gravity. Gravity is the last of the four forces that humans are yet to figure out how to create and control. The force doesn't explain everything that it supposedly controls - studies of our universe have shown that there is more gravity in our universe than can be produced by all of its visible matter. Read more: http://www.dailymail.co.uk/sciencetech/article- 4554492/Researchers-suggest-FIFTH-force-nature.html#ixzz4ieiWQ0ao Follow us: @MailOnline on Twitter | DailyMail on Facebook Post Comment Private Reply Ignore Thread Top • Page Up • Full Thread • Page Down • Bottom/Latest Begin Trace Mode for Comment # 1.
#1. To: Ada (#0)
The title is interesting, and yet the entire article does very little to expand on it.
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