3 ms·

> The supermassive black holes at the centers of galaxies really can't have anything to do with dark matter or any possible alternatives. What makes you so sur

> The supermassive black holes at the centers of galaxies really can't have anything to do with dark matter or any possible alternatives. What makes you so sure? I think limiting our thinking too much into the confines of regular gravitation is a mistake. Maybe SMB are the source of these theoretical heavy neutrino's we have yet to detect that are the #1 candidate for dark matter/WIMPS. Or maybe the gravitational disturbance of a singularity is far more complex that we imagine? Take a look at the video on the Galaxy Rotation Curve video in this wiki: https://en.wikipedia.org/wiki/Galaxy_rotation_curve#Description https://en.wikipedia.org/wiki/Galaxy_rotation_curve#Descript... I stare at it and cant help but wonder is something about that central singularity is unique. We still have no idea what truly happens at the center.

snowwrestler 9y ago
We have observed visible objects (stars) that are close enough to be orbiting a supermassive black hole and they follow the expected orbits. If supermassive black holes do something new and strange with gravity--something big enough to affect an entire surrounding galaxy--it seems likely it should somewhat affect the trajectories of the nearest objects too. That's not to rule out something strange about black hole gravitation, but the observations do constrain some versions of how strange things can be.