Originally posted by Phage
reply to post by RFBurns
GPR is extremely limited.
Ground based systems barely get beyond 10 meters. I know of no space-based systems.
To add, space-based systems which are more capable than ground based.
Apparently NASA sent two of these space based GPR systems to Mars back in 2005 on board
MEX and MRO.
From article..
In contrast, if the cap consistency is more like firm snow, with σ ~ 10-5 S/m, aquifer detection with a return signal above the noise level is
possible to a depth of about 1 km.
Granted 1km is not that deep either, but would give a good indication if this theory of a hollow moon is true or not. The system would not need to
look through an atmosphere, ice, snow, mud etc. So the return signal should be pretty good and may even exceed that of the specs for these systems
used on the polar caps of Mars.
Cheers!!!!
[edit on 18-2-2009 by RFBurns]