What alternative cosmological theory is mentioned that attempts to explain flat rotation curves by altering gravity rather than invoking unseen mass?
Answer
Modified Newtonian Dynamics (MOND)
MOND suggests that the law of gravity itself changes at very low accelerations, such as those found in the outer regions of galaxies, offering an alternative to the necessity of invoking dark matter.
#Videos
Astrophysics: Galaxy Rotation Curves and Dark Matter - YouTube
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