Gravity formed these

NASA,

How does the mechanics of gravity form these “bubbles” on either side of the Milky Way Galaxy?

It looks like it works the same way to form the rings of Saturn.

Is this an illustration of the path of gravity (a.k.a. curved spacetime)?

The ISS Falling Bodies Gravity Test (IFBGT) will observe and monitor falling bodies in “free-fall” motion to monitor the effects of gravity, etc.

Please support or effort!