+The luminiferous aether was a hypothetical medium once believed to transmit [Light Waves](/wiki/light_waves) across the vacuum of space. Proposed as an all-pervasive, undetectable substance, its non-existence was famously demonstrated by the [Michelson-Morley](/wiki/michelson-morley) experiment, fundamentally reshaping physics.
+## See also
+- [Relativity](/wiki/relativity)
+- [Wave Theory](/wiki/wave_theory)
+- [Vacuum](/wiki/vacuum)