Light itself has gravity.The extra gravity we see in the universe comes from all the light/radiation that isn't pointed towards us (i.e. we can't see it) but that still exerts gravity in all directions.
>>16928883Makes sense
>>16928883>Light itself has gravity.Okay, let's measure this.
>>16929113How could anyone measure that, tho?
black holes don't evaporate because they're constantly eating all the light that hits them
>dark energy is just photons frame dragging space with them as they move