Gravitational waves propagate in an omnidirectional manner in a spherical configuration. When a gravitational wave is generated, it radiates outward from its source, spreading out in all directions like ripples on the surface of a pond when a stone is thrown into it. This means that gravitational waves extend through space in a three-dimensional pattern, rather than being confined to a single plane or dimension.
Gravitational waves are a consequence of the curvature of spacetime caused by accelerated masses. As these masses accelerate, they create ripples in the fabric of spacetime that propagate outward as waves. These waves carry energy and information about the accelerating masses.
When a gravitational wave passes through space, it causes a stretching and squeezing of spacetime along perpendicular directions. This stretching and squeezing effect is often represented as transverse waves, similar to waves on the surface of water. However, it's important to note that gravitational waves are not waves in a physical medium like water; instead, they are a distortion of the very fabric of spacetime itself.
So, in summary, gravitational waves propagate in all directions from their source, creating a spherical pattern of oscillating spacetime as they travel through the universe.