Science
An experiment built to detect Earth's motion through space found absolutely nothing
In 1887, Albert Michelson and Edward Morley built an extremely sensitive interferometer expecting to measure Earth's speed through the 'luminiferous ether' physicists assumed carried light waves. They found no difference at all, in any direction. The stubbornly null result had no explanation until Einstein's special relativity did away with the ether entirely in 1905.