[theptip]

I don't think "thermonuclear" is the right term for the batteries in probes. Wikipedia says "thermoelectric"[1], as the electricity is generated directly by thermocouples.

"Thermonuclear" usually refers to the sorts of fusion reactions found in stars and modern nuclear warheads.

[1]: https://en.wikipedia.org/wiki/Radioisotope_thermoelectric_ge...

[tarre]

Thanks for correction. Unfortunately I'm not able to edit it anymore.