The evidence for gravity existing beyond explored space is supported by observations related to black holes and the validation of Einstein's theory of relativity.
Scientists have gathered evidence for the existence of gravity outside the explored universe through observations related to black holes and the effects of gravity near them. For example, the observations made with the Hubble Space Telescope and X-ray satellites support the presence of black holes, indicating the influence of gravity beyond our known space.
Furthermore, Einstein's general theory of relativity, which describes the effects of gravity, has been tested and validated through various observational methods, convincing even skeptical scientists of its accuracy in depicting the behavior of gravity in the vicinity of black holes.
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