any experiments that proves the existence of the aether?

The concept of "aether" as a medium for the propagation of light and electromagnetic waves was a prevalent idea in physics until the early 20th century. However, several key experiments ultimately disproved its existence. 1. **Michelson-Morley Experiment (1887)**: This is perhaps the most famous experiment that sought to detect the presence of the aether. Albert A. Michelson and Edward W. Morley designed an interferometer to measure differences in the speed of light in perpendicular directions, which they hypothesized would reveal the motion of the Earth through a stationary aether. The experiment produced a null result, indicating no detectable difference in light speed, which suggested that aether did not exist. 2. **Later Developments**: Following the Michelson-Morley experiment, other experiments and theoretical advancements further refuted the need for the aether. Notably, Einstein's theory of special relativity (1905) eliminated the necessity for aether by proposing that the speed of light is constant in all inertial frames, rendering the concept obsolete. 3. **Kennedy-Thorndike Experiment (1932)**: This experiment aimed to test the isotropy of light speed and further confirmed the conclusions of the Michelson-Morley experiment, reinforcing that no motion relative to an aether could be detected. 4. **Subsequent Advances in Physics**: The development of quantum electrodynamics and the understanding of the vacuum state in quantum field theory further clarified that light can propagate through "empty space" without the need for an aether. In summary, rather than providing evidence for the existence of aether, the experiments conducted, especially the Michelson-Morley experiment, provided strong evidence against it. The scientific consensus today is that aether, as it was originally conceived, does not exist.