Author: Joachim Wambsganss

Astronomers do not do experiments. They observe the universe primarily through detect- ing light emitted by stars and other luminous objects. Since this light must travel through space to reach us, v …

The observation, in 1919 by A.S. Eddington and collaborators, of the gra- tational de?ection of light by the Sun proved one of the many predictions of Einstein’s Theory of General Relativity: The Sun …