the search for quantum gravity has inspired a search for ways SR might be modified.
a deeper look at some experiments that appear to refute SR:
Group velocity >c in anomalous dispersive media
Visible superluminal astronomical sources: apparent speed is greater than c, actual speed > c
Michelson and Morley (!): errorbars are from a histogram of the values that were averaged.
They are dominated by the systematic error.
Dayton Millerís repetition of the MMX:
Because of the large errorbars of his results, his results† are not statistically significant.
In a reanalysis,† it was concluded that Miller was unknowingly looking at insignificant patterns in the systematic error that mimicked the appearance of a real signal.
Aether theories: the Lorentz Ether Theory remains valid today (except for quantum phenomena)
Problems for Aether theories: if light is propagated as a wave in the Aether, how does quantization of light arise?
How do absorption spectra arise?
Summary: amateurs look at patterns; professionals look at errorbars. Measure your systematic errors.
Today SR stands unrefuted experimentally
SR and its Lorentz invariant have been instrumental in the search for new fundamental thories: GR, QED, Electro-weak, QCD, the Standard Model.
But this may not be true in the future: quantum gravity may violate SR
QG may have detailed structure at the Plank scale.