What are the implications of this? Does it mean the speed of light is not constant after all? Does it mean relativity theory needs to be revised? > The researc

What are the implications of this? Does it mean the speed of light is not constant after all? Does it mean relativity theory needs to be revised? > The researchers also expect that this method can be used for other types of waves besides light, such as acoustic waves. They should try it on gravitational waves next time.