On Sunday, December 7, 2014 7:31:08 PM UTC-8, RichA wrote:
http://www.osti.gov/accomplishments/rtg.html

Well, it could be because it has not tried to land on anything, it has just been cruising along unimpeded, while sleeping most of the way. Of course, it does have nuclear power, but then, it is way beyond the orbit of Jupiter, which pretty much dictates such a power source.

It sure looks now that the ESO lander accomplished every experiment that it was scheduled to perform, and has returned results. They were just lucky, right?

\Paul A