Gravitational Waves

Albert Einstein predicted in his Theory of General Relativity that mass actually curves space-time, but it wasn’t until 2016 that scientists were able to confirm it, when CalTech researchers observed these ripples—created during what the researchers called a “cataclysmic event in the distant universe”—likely during the “merger of two black holes to produce a single, more massive spinning black hole.” It marked the first observation of gravitational waves and a confirmation of Einstein’s theory a century after he suggested it.