Thinking about the upcoming Superman movie cast my mind back to the dire Superman 4(?), where Mr Muscles threw all the nukes into the sun.
That got me thinking about the following:
Assuming we had the tech to send a probe to land/impact the sun (and it and it's instruments could take everything the sun could throw at it), then
a) Would a free-drop from a craft work, or would all the stuff (pardon the technical terms) coming from the sun require a powered descent? Any difference if you're aiming for a sunspot?
b) What mysteries would you look to resolve?
This includes would you aim for "normal" surface, sunspot, or pole? What instruments would you have on board?