Welcome to Gaia! ::

So it looks like they have finally given up on getting the rover unstuck. And now it looks like the best they can hope for is tilt it in away that will give the panels more direct sun light. But assuming the rover gets enough light to survive the winter their is still a lot of science it can do. Science that the rover couldn't do wile moving.
Weather observations
monitoring of wind erosion
Panoramic images
Seismic measurements
Surface composition
And measuring short changes in the wobble of Mars’s rotation with the use of radio signals. Short changes in the wobble could tell us if the core is solid or partly molten. And longer period changes could tell us about the size and density of the core.
That’s some pretty cool stuff I hope they can get enough energy to survive winter I’m excited and if I can make a bet I would put my money on the core still being partly molten. I would love to find out that mars is still geologically active.
And their's no harm in ending up wrong because that would be pretty interesting. The way I see it you cant afford to be a afraid of being wrong when it comes to science ^_^ wouldn’t you agree?

GO SPIRIT <3

That’s a really great question to be answered, if mars is still active, if this stationary science is to be spirit's grand finale, I say its a damn good final chapter to spirit's story.

my vote: partly molten