It’s not just that experiments have not detected the aether, the Mendelssohn Morley experiment and subsequent follow up experiments at larger scales shows that

It’s not just that experiments have not detected the aether, the Mendelssohn Morley experiment and subsequent follow up experiments at larger scales shows that the aether definitely does not exist, and that’s where the problems start. If there was aether we should see the effect of drag on light like we do for matter with the Higgs Bosom field, but we don’t. Photons always travels at the speed of light without any drag in every direction. What medium does light travel through? The answer is that there is no medium for the waves to travel through, yet travel and wave they do.