Today’s Cassini pass near Dione includes science experiments that provide another test of ‘Non-Newtonian Physics’.
http://planetary.org/blog/20051010.html
For two hours near closest approach, Cassini is scheduled to be transmitting to the Earth, and if all is well, the very large array has already captured Doppler data that should give us a good approximation of the Newtonian mass of Dione. However, if ‘Jerry physics’ are real, there must be a gradient in this data that is consistent with an 'increase’ in mass upon closest approach!
Just like with Ganymede, this will likely be interpreted as a gravitational anomaly with no corresponding surface feature: a very dense region relative to the mass of the moon in general.
Results consistent with what I have describe would not prove non-Newtonian gravitational effects – there could be a true gravitational anomaly. However, a failure to observe this type of event would be compelling evidence that a non-Newtonian gradient does not exist, nullifying this hypothesis.
It may be a while - months or even years - before the detail from this science experiment is publically available. (We are still waiting for the science data from Huygens, scheduled to be released in June of 2006.) So don't expect a quick answer. Watch and see.
Isn't this fun?