A new theory of quantum gravity could explain the biggest puzzle in cosmology, study suggests

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Andrey got his B.Sc. and M.Sc. degrees in elementary particle physics from Novosibirsk State University in Russia, and a Ph.D. in string theory from the Weizmann Institute of Science in Israel. He works as a science writer, specializing in physics, space, and technology. His articles have been published in Elements, N+1, and AdvancedScienceNews.

A variation on the theory of quantum gravity — the unification of quantum mechanics and Einstein's general relativity — could help solve one of the biggest puzzles in cosmology, new research suggests.

An expanding problemThe universe's expansion was first identified by Edwin Hubble in 1929. His observations with the largest telescope of that time revealed that galaxies farther from us appear to move away at faster speeds. Although Hubble initially overestimated the expansion rate, subsequent measurements have refined our understanding, establishing the current Hubble parameter as highly reliable.

By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.Related: Newfound 'glitch' in Einstein's relativity could rewrite the rules of the universe, study suggests Acknowledging these challenges, Suresh and Anupama focused on broad quantum-gravity effects common to many proposed theories.

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