Measuring light deflection with radio telescopes
The deflection of the path of light by mass is one of the classical predictions of general relativity. Probably its most famous successful test was the 1919 detection of the deflection of starlight by the Sun during a total solar eclipse, by comparing with ...
Gravitational deflection of light
Theories of the deflection of light by mass date back at least to the late 18th century. At that time, the Reverend John Michell, an English clergyman and natural philosopher, reasoned that were the Sun sufficiently massive, light could not escape from its ...
