The universe unlocked: gravitational waves detected

Watch Monash astrophysicists and LIGO Scientific collaborators Dr Eric Thrane and Dr Paul Lasky describe the incredible event which took place about 1.4 billion years ago, generating the first ever gravitational wave to be detected on 14 September 2015 by the Laser Interferometer Gravitational-wave Observatory (LIGO) detectors in the USA.  They describe the moment of realisation that this was a real gravitational wave, the significance of the detection and how it could unlock the secrets of the universe.