What was the luminiferous aether?

The “luminiferous aether” was postulated by scientists in the 19th century as the medium in which light could propagate through. The aether was believed to have possessed the following features:

  • Perfectly transparent 
  • Was able to permeate all matter
  • Filled up all of space
  • Massless
  • Highly elastic

However the “luminiferous aether” was eventually discarded following the null result of the Michelson Morley (conducted in 1887 by Albert A. Michelson and Edward Morley), where a change in the interference pattern could not be recorded( due to the speed of light being constant). The null result suggested that there was no need for an aether for light to propagate through. 

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