Tongue out, hair a mess, mischievous look: the photo of the famous Albert Einstein was taken ... And so it was that Einstein's picture made its way around the globe, becoming a veritable symbol of pop ...

Albert Einstein is one of the most recognized and well-known scientists of the century. His theories solved centuries-old problems in physics and rocked even non-physicists' view of the world.

Galactic lenses like this one, which is the closest astronomers have ever found, were predicted by Albert Einstein in 1936 from his theory of general relativity. At the time, he thought such an ...

When Albert Einstein introduced his theory of general ... The L, for lambda, is the symbol used in general relativity to represent the rate of cosmic expansion and represents dark energy, while ...