Can anyone highlight how to disable gravity of dynamic objects in isaac sim?

Omniverse Isaac Sim
1

I am using dynamic spheres and i want to disable their gravity for the whole simulation or sometimes during some parts of the simulation.

2

Hi,
this should be possible through USD and PhysxSchema:

from pxr import PhysxSchema

physxAPI = PhysxSchema.PhysxRigidBodyAPI.Apply(cubePrim)
physxAPI.CreateDisableGravityAttr(True)