On 11 February 2016, it was announced by the Laser Interferometer Gravitational-Wave Observatory (LIGO) collaboration that gravitational waves had been discovered, finally confirming a century old prediction. This was very exciting, and the story was big news, making the front page of national newspapers and magazines, with even President Obama tweeting about it. The history of gravitational waves up to their discovery is rather interesting, so I thought I’d share some of it here.
A brief history of gravitational waves
