Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.
This James Webb Space Telescope deep-field image shows some of the earliest and most distant galaxies ever seen.There is no denying the awesome predictive power of Albert Einstein's 1915 theory of gravity, general relativity — yet, the theory still has inconsistencies when it comes to calculating its effect on vast distances. And new research suggests these inconsistencies could be the result of a"cosmic glitch" in gravity itself.
This adjustment can be done, the team says, by adding a single extension to the standard cosmological model. This model is known as the lambda cold dark matter model. Once complete, the admendment should clear up inconsistencies in measurements at cosmological scales without affecting the existing successful uses of general relativity. as a mysterious force, it posited that gravity arises from the curvature of the very fabric of space and time, united as a single entity called"spacetime.
Well, probably not. As a theory, it has been too accurate in predicting aspects of the universe we didn't know about. For instance, the first image of a black hole captured by the Event Horizon Telescope was revealed to the public in April 2019. This image was kind of shocking because of how closely the appearance of the supermassive black hole M87*However, scientists are aware there are a few issues with general relativity that may require its eventual revision.
observation of the black hole M87* in polarized light a simulation of a black hole created using general relativityIf the idea of revising general relativity seems tantamount to heresy, consider that this wouldn't be the first time that its related theories had to be adjusted. Lambda, however, would actually make a comeback. It'd start serving a different function at the end of the 20th century, when astronomers discovered that not only is the"Almost a century ago, astronomers discovered that our universe is expanding," Niayesh Afsharid, a University of Waterloo professor of astrophysics and a researcher at the Perimeter Institute, said in the statement.
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