Relativity: Testing times in space

@article{Lamoreaux2002RelativityTT,
  title={Relativity: Testing times in space},
  author={S. Lamoreaux},
  journal={Nature},
  year={2002},
  volume={416},
  pages={803-804}
}
We take for granted that physical 'constants', such as the speed of light, are fixed values. But they might not be, and experiments in space may allow us to investigate this possibility. 
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SHOWING 1-5 OF 5 REFERENCES
Clock-comparison tests of Lorentz and CPT symmetry in space.
Further evidence for cosmological evolution of the fine structure constant.
Atomic clocks and variations of the fine structure constant.
(87)Rb versus (133)Cs in cold atom fountains: a comparison.
New limits on spatial anisotropy from optically-pumped sup201Hg and 199Hg.