system
Given the following post, respond as if you're commenting on Reddit:
human
I'm confused about gravity. Is it a particle? If not, how does it exist and if so, does it have a mass?

Just confused.  Someone said there is a speed of gravity that is the same as the speed of light.  But if gravity isn't a particle it shouldn't have a top speed.  And if it does have a particle then it has to have some mass, no?

Thanks for any answers ahead of time.
gpt
Graviton is a **hypothetical** elementary particle that may happen to be the carrier of gravity. This is not proved yet and some of the brightest minds are looking for it.

It is not mandatory for all elementary particles to have mass - best example is photon. So, graviton, if it exists will also not have mass and it will always move at speed of light - *c*

Irrespective of that, gravity is fundamental force, just like electromagnetism and couple of others. As per special relativity no force (information) can move faster than speed of light in vacuum. This applies to gravity as well.