how does gravity in a vacuum work is there a particle force or field that pulls on the affected object how does it reach across a vacuum where there is no touching matter.

Question

.So the space station is orbiting in our planet I understand that it’s being pulled down and its current inclination of orbit at the same time to where it’s technically in constant free fall and I also understand that Newton’s first law is an object in motion will stay out motion until force is acted upon it. But when I think about gravity I can’t seem to understand how it pulls does gravity have a particle or a link to the object it’s pulling in some way?

In: Physics

Answer 1

It’s a mystery. On a large scale, gravity can be thought of as warping of space-time itself. That’s general relativity. But there are some inconsistenies between relativity and quantum mechanics, which governs the very small scale. A graviton is a hypothetical elementary particle that would mediate the force of gravity. Gravity is the only one of the four fundamental forces that doesn’t have a known elementary particle associated with it. This is basically what all the fuss is about in the search for a “grand unified theory”.