How a weird theory of gravity could break cause-and-effect – Livescience.com

Astronomers have known that galaxies across the universe are behaving badly. Some are spinning too fast, while others are just way too hot and still others glommed into super structures too quickly.
But they don’t know why. Perhaps some new hidden particle, like dark matter
, could explain the weirdness. Or perhaps gravity
is acting on these coalescing clusters of stars in a way scientists hadn’t expected.
For decades, astronomers have debated the possibilities. While most astronomers believe that…

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