[–] derram 0 points 0 points (+0|-0) ago 

https://archive.fo/PcL5l :

Einstein's Greatest Theory Validated on a Galactic Scale - Scientific American

'Not just any theory, but one that sets scientists’ expectations for how the universe operates at large: Einstein’s general relativity. '

'In 2011 that research netted a Nobel Prize, but its validity hinges on general relativity being the correct description of gravity at cosmological scales. '

'With an error margin of just 9 percent, the experiment’s findings are the most precise measurement of general relativity beyond our solar system to date. '

'Precisely measure those distortions, and you gain a good sense of how much mass the foreground galaxy should contain according to general relativity. '

'For their test, Collett and his collaborators focused on two galaxies in a coincidental celestial alignment, with one directly in front of the other along an Earthbound observer’s line of sight. '

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