Luminiferous Aether

The aether, also known as the ether, was a mysterious substance that was long believed to be the means through which light was transmitted through the universe. Philosophers as far back as the Greeks had believed that light required a delivery system, a means through which it became visible, and this idea managed to persist all the way through to the nineteenth century. If correct, the theory would have redefined our entire understanding of physics. Most notably, if the aether were a physical substance that could exist even in a vacuum, then even deep space could be more easily measured and quantified. Experiments often contradicted the theory of the aether, but by the 1700s it had become so widespread that its existence was assumed to be a given. Later, when the idea was abandoned, physicist Albert Michelson referred to luminiferous aether as “one of the grandest generalizations in modern science.”
How it was Proven Wrong:
In traditional scientific fashion, the notion of a luminiferous aether was only gradually phased out as more sophisticated theories came into play. Experiments in the diffraction and refraction of light had long rendered traditional models of the aether outdated, but it was only when Einstein’s special theory of relativity came along and completely reconfigured physics that the idea lost the last of its major adherents. The theory still exists in various forms, though, and many have argued that modern scientists simply use terms like “fields” and “fabric” in place of the more taboo term “aether.”
through which light was transmitted through the universe. Philosophers as far back as the Greeks had believed that light required a delivery system, a means through which it became visible, and this idea managed to persist all the way through to the nineteenth century. If correct, the theory would have redefined our entire understanding of physics. Most notably, if the aether were a physical substance that could exist even in a vacuum, then even deep space could be more easily measured and quantified. Experiments often contradicted the theory of the aether, but by the 1700s it had become so widespread that its existence was assumed to be a given. Later, when the idea was abandoned, physicist Albert Michelson referred to luminiferous aether as “one of the grandest generalizations in modern science.”