This is very interesting. And not just solar heating, but accumulating/discharging electromagnetic charge on each pass (and not just from the sun but from the entire heliopause); the two (heating and charge) cannot be separated, although NASA and all these other reductionist, Standard Model shills (e.g. Dr. Ass-strobe and Holden-on-to-it) on glp persist with their medieval mantra of Cartesian mechanics and Einsteinian abstractions as the only description of the Universe.