According to our current understanding of physics, the speed of gravity is believed to be equal to the speed of light. This principle is based on Albert Einstein's theory of general relativity, which describes gravity as the curvature of spacetime caused by mass and energy.
In Einstein's theory, gravitational interactions propagate through spacetime at the speed of light. This means that any changes in the distribution of mass and energy, such as the motion of massive objects or the emission of gravitational waves, would also propagate at the speed of light.
However, it is important to note that there are still open questions and ongoing research in the field of theoretical physics. Some theories propose modifications to general relativity, suggesting that the speed of gravity might be different from the speed of light under certain conditions. These ideas are still being explored and tested through experiments and observations.
To summarize, according to our current understanding, the speed of gravity is expected to be equal to the speed of light. However, further research is needed to confirm or refine our knowledge on this topic.