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'''Negative evidence''', in its most significant meaning, is data expected to be available but which is not. Its non-existence implies that the data would discredit a theory, particularly when promoters of the theory (such as academic [[science]]) control access to data about the theory.
For example, negative evidence concerning the [[Theory of Relativity]] includes:
# Far better data using far more advanced equipment, on dry land during an [[eclipse]], since the crude 1919 eclipse observations of starlight deflection as made on a boat with flawed results by Sir [[Arthur Eddington]].
# Updated, more accurate data about the advance of [[Mercury]]'s [[perihelion]], whose data began to diverge from predictions about two decades ago.
# Updated, more accurate data about the binary pulsar PSR B1913 16, for which the 1993 [[Nobel Prize]] in Physics was awarded, but afterwards the data began diverging from the predictions by the [[Theory of Relativity]] such that a special "galactic acceleration term" was created to try to fit updated data to the theory.
[[category:science]]
[[category:Theory of Relativity]]