Is dark matter’s “nightmare scenario” true?

There’s an enormous puzzle to the Universe, and it’s one that might remain puzzling for a long time: dark matter. For generations, now, it’s been recognized that the known law of gravity, Einstein’s General Relativity, combined with the matter and radiation that’s known to exist in the Universe — including all the particles and antiparticles described by the Standard Model of physics — doesn’t add up to describe what we see. Instead, <a href="https://bigthink.com/starts-with-a-bang/5-truths-dark-matter/" rel="noopener ugc nofollow" target="_blank">on a variety of cosmic scales</a>, from the insides of individual galaxies to groups and clusters of galaxies all the way up to the largest filamentary structures of all, an additional source of gravity is required. It’s possible that we’ve got the law of gravity wrong, but if that’s the problem, it’s wrong <a href="https://bigthink.com/starts-with-a-bang/modifying-gravity/" rel="noopener ugc nofollow" target="_blank">in an extremely complicated way</a> that also seems to require an additional source of matter (or something that behaves equivalently). Instead,  <a href="https://medium.com/starts-with-a-bang/is-dark-matters-nightmare-scenario-true-395381d984b">Visit Now</a>