On Sat, 28 Apr 2012 10:11:15 -0700 (PDT), RichA
wrote:

Solar = junk. $0.80kwh for power. It is to laugh...

Solar panels are several orders of magnitude less expensive on
spacecraft than RTGs. It would be stupid to use nuclear power on a
satellite that has an ample, continuous supply of sunlight. I think
the engineers here understand a bit more about this than you do.