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Is There a 'Fifth Force' that Alters Gravity at Cosmos Scales?

11 May 2012, 16:00 UTC
Is There a 'Fifth Force' that Alters Gravity at Cosmos Scales?
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Radical new research is attempting to characterize the properties of a fifth force that disrupts the predictions general relativity makes outside our own galaxy, on cosmic-length scales. University of Pennsylvania astrophysicist Bhuvnesh Jain, says the nature of gravity is the...

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