The shift in wavelengths toward the red end of the spectrum, caused by a gravitational field

the shift in wavelength of electromagnetic radiation (light) created by a body's gravitational field as the radiation moves away from the body. Only extremely dense objects, such as white dwarfs, produce a significant redshift of their radiation.

The redshift of electromagnetic radiation caused by a gravitational field. The slowing of clocks in a gravitational field.

The change to longer wavelengths that marks the loss of energy by a photon that moves from a stronger to a weaker gravitational field.

the lengthening of the wavelength of electromagnetic radiation as it moves away from a region of intense gravity.

The reddening of light from a very massive object caused by photons escaping and traveling away from the object's strong gravitational field. An example of gravitational redshift is light escaping from the surface of a neutron star.

In physics, light loses energy when it moves away from a massive body such as a star or a black hole; this effect reveals itself as a gravitational redshift in the frequency of the light, and is observable as a shift of spectral lines towards the longer, or "red," end of the spectrum. Gravitational redshift is sometimes known as the Einstein effect, although that is not the only meaning applied to that term.