； However, it was not until 1959 that a series of high-precision experiments were carried out, which confirmed many predictions of general relativity in the weak gravitational field limit. Since 1974, Russell Allen Hulls, Joseph Houghton Taylor and others have been studying pulsar binaries, which are subject to much greater gravity than in the solar system. Whether it is the weak gravitational field limit (in the solar system) or the stronger gravitational field in the pulsar system, the prediction of general relativity has quite good experimental evidence.
