Next to the favored general relativity, there is another theory of gravity that currently agrees with experimental results.

Brans-Dicke theory was formulated in the 1960's. Like general relativity, Brans-Dicke is formulated using the metric tensor, and describes gravity (partly) as the curvature of space-time due to the metric tensor. However, Brans-Dicke predicts that a scalar field is also partly responsible for gravitational interaction. Unlike general relativity, which is formulated using using a 1/G constant(G being the gravitational constant), Brans-Dicke theory replaces this constant with a scalar field that varies from place to place and with time.

Brans-Dicke theory predicts the precession of orbits as well as the bending of light, as does general relativity.

Are there any supporters of Brans-Dicke on this website?

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