WASHINGTON (Reuters) - A century ago, Albert Einstein hypothesized the existence of gravitational waves, small ripples in space and time that dash across the universe at the speed of light.
Reuters: Top News, Reuters
Thu, 02/11/2016 - 3:20am
WASHINGTON (Reuters) - A century ago, Albert Einstein hypothesized the existence of gravitational waves, small ripples in space and time that dash across the universe at the speed of light.