Hacker News new | past | comments | ask | show | jobs | submit login

No GR does not predict dark matter.

But when we look at galaxies and so on, things don't seem to add up if you only look at the visible matter.

So, there could be a lot of dark matter we can't see. Or GR might not be correct and MOND (or a relativistic formulation like AQUAL) might be the right answer.

It's true I guess that if GR is correct, then we need some kind of dark matter to explain observations. But it might not be correct.




It's simpler to say Newtonian gravity and visible matter alone is sufficient to explain the need for dark matter.

Adding GR to the picture doesn't take away the need for dark matter to account for observations.


True, even without GR the same issue would exist with Newtonian gravity.




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: