For months, the science world has been buzzing about the rumor that gravitational waves, the ripples in spacetime that Einstein predicted a hundred years ago, have finally been detected. Today, at press conferences all over the world, researchers at the Laser Interferometer Gravitational-Wave Observatory (LIGO) confirmed that the hype is true.

Physicists have been buzzing (or rather, tweeting) about the possibility that the Laser Interferometer Gravitational-Wave Observatory (LIGO) experiment finally discovered gravitational waves. LIGO has been searching for these cosmic ripples for over a decade. Last September, it upgraded to Advanced-LIGO, a more sensitive system that's also better at filtering out noise. Advanced-LIGO has a much stronger chance of collecting concrete evidence of gravitational waves—if it hasn't already.