lol - nobody threw any shade and you just wanted to pretend to be a victim for some reason.

Considering you went and deleted your comment you're the one that's new to reddit.

Pretty weird how sensitive you are over the 4 downvotes you got, especially because your comment was actually interesting.

Here's the relevant info you posted for ppl:

this basic technology is what is powering the Mars rover Curiosity and every spacecraft past Mars (with the exception of Juno which has a scary efficient huge set of solar panels).

A Stirling engine is at the heart of the Multi-mission radioisotope thermoelectric generator (MMRTG) which converts the heat from decaying plutonium-238 dioxide into electricity.