The gravitational redshift occurs due to the curvature of spacetime caused by the presence of mass and energy, leading to the stretching of light waves and a decrease in their frequency.

Albert Einstein first predicted the gravitational redshift as a consequence of his General Theory of Relativity in 1915.

The gravitational redshift and the bending of light are both consequences of the curvature of spacetime, which is predicted by Einstein's General Theory of Relativity.

The first experimental confirmation of the gravitational redshift came from the observation of binary pulsars, where one of the pulsars is in a strong gravitational field of the other.

The bending angle of light near a massive object is given by the equation $\theta = \frac{4GM}{c^2r}$, where $G$ is the gravitational constant, $M$ is the mass of the object, $c$ is the speed of light, and $r$ is the distance of closest approach.

Gravitational lensing is the bending of light around a massive object, which can lead to the distortion and magnification of images of distant objects.

The gravitational redshift and time dilation are both consequences of the curvature of spacetime, which is predicted by Einstein's General Theory of Relativity.

The gravitational redshift is a crucial tool in cosmology, as it provides evidence for the expansion of the universe, helps determine the age of the universe, and allows us to measure the distance to distant galaxies.

The bending angle of light near the Sun is given by the equation $\theta = \frac{2GM}{c^2r}$, where $G$ is the gravitational constant, $M$ is the mass of the Sun, $c$ is the speed of light, and $r$ is the distance of closest approach.

The Eddington Expedition was a scientific expedition led by Arthur Eddington to confirm Einstein's prediction of the bending of light during a solar eclipse in 1919.

The Schwarzschild radius is the radius of the event horizon of a black hole, beyond which nothing, not even light, can escape.

The gravitational redshift is inversely proportional to the Schwarzschild radius, meaning that the closer an object is to the event horizon of a black hole, the greater the gravitational redshift.

The bending angle of light near a black hole is given by the equation $\theta = \frac{4GM}{c^2r}$, where $G$ is the gravitational constant, $M$ is the mass of the black hole, $c$ is the speed of light, and $r$ is the distance of closest approach.

The bending of light near a black hole provides evidence for the existence of black holes, allows us to measure the mass of black holes, and helps us understand the nature of gravity.