{"id":235318,"date":"2026-04-16T02:27:54","date_gmt":"2026-04-16T07:27:54","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/04\/gravity-follows-newton-and-einsteins-rules-even-at-cosmic-scales"},"modified":"2026-04-16T02:27:54","modified_gmt":"2026-04-16T07:27:54","slug":"gravity-follows-newton-and-einsteins-rules-even-at-cosmic-scales","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/04\/gravity-follows-newton-and-einsteins-rules-even-at-cosmic-scales","title":{"rendered":"Gravity follows Newton and Einstein\u2019s rules, even at cosmic scales"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/gravity-follows-newton-and-einsteins-rules-even-at-cosmic-scales2.jpg\"><\/a><\/p>\n<p>Gravity, as most people understand it, is the familiar force that pulls a falling apple toward Earth. But for astronomers and theoretical physicists, it is also a vexing invisible architect that guides the shape and evolution of the largest cosmic structures across the universe.<\/p>\n<p>For decades, puzzling observations of unusually fast-moving galaxies have forced cosmologists like the University of Pennsylvania\u2019s Patricio A. Gallardo to revisit the fundamentals of physics, exploring, for example, whether the laws of gravity as described by Isaac Newton and Albert Einstein truly apply everywhere.<\/p>\n<p>\u201cAstrophysics has been plagued by a massive discrepancy in the cosmic ledger,\u201d says Gallardo. \u201cWhen we look at how stars orbit within galaxies or how galaxies move within galaxy clusters, some appear to be traveling way too fast for the amount of visible matter they contain.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gravity, as most people understand it, is the familiar force that pulls a falling apple toward Earth. But for astronomers and theoretical physicists, it is also a vexing invisible architect that guides the shape and evolution of the largest cosmic structures across the universe. For decades, puzzling observations of unusually fast-moving galaxies have forced cosmologists [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[385,219,8],"tags":[],"class_list":["post-235318","post","type-post","status-publish","format-standard","hentry","category-evolution","category-physics","category-space"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/235318","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=235318"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/235318\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=235318"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=235318"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=235318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}