The Economist tells the tale:
If the equivalence principle were violated, the moon's orbit around the Earth would appear skewed, either towards or away from the sun. So far, Dr Murphy told the conference, these experiments have merely confirmed the equivalence principle to one part in 10 trillion. Dr Murphy and his colleagues hope that even more precise measurements could ultimately show general relativity to be only approximately correct. This would usher in a new revolution in physics.(my emphasis)Just sitting there, playing laser ping pong with the moon, with a chance to achieve physics immortality thrown in, and tenure too.
tags: Dum Luks Stockpot, Einstein, gravity, '"Rethinking Gravity"