Todos hemos sido estrellas, todos hemos sido luz, una sencilla y asombrosa explicación del universo 03/19/14 PHD comic: 'Cosmic Inflation Explained'
Another image that puts the incomprehensible size of the universe into perspective. All of the places on that picture exist, just as earth does, and you and I do today.
Visualizing The Size And Scale Of Our World
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Albert Einstein's General Theory of Relativity celebrates its 100th anniversary in 2015. See the basic facts of Einstein's relativity in our infographic here.
Einstein's general theory of relativity suggests, among other things, that masses in space distort the geometry of space-time. In addition, moving objects emit waves of gravitational radiation that carry energy away into space.