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引发争议的“熵引力”理论
Controversial 'Entropic Gravity' Clears Hurdle on Path to ...
Science
Controversial ‘Entropic Gravity’ Clears Hurdle on Path to Eliminating Dark Matter - NOVA Next
Using the way light bends around dense galactic cores, a team of physicists has shown that the universe may not need dark matter after all, at least if a controversial theory of gravity proves true. Margot Brouwer and her colleagues used existing troves of data on distant galaxies to study dark matter using gravitational lensing, or how gravity bends light around them. Dark matter is thought to make up 27% of the universe and significantly increase the mass of galaxies. But when Brouwer and her team plugged their results into a typical model of gravity-including dark matter-and one without, they received the same results. What’s more, the model without dark matter required fewer tweaks. It’s
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