This is exactly what they did with Opportunity and Spirit: https://en.m.wikipedi... | Hacker News

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		chriskanan on July 29, 2020 \| parent \| context \| favorite \| on: Three spacecraft heading to Mars this summer This is exactly what they did with Opportunity and Spirit: https://en.m.wikipedia.org/wiki/Mars_Exploration_Rover I think is is largely due to budget reasons, though.

sandworm101 on July 29, 2020 [–]

Those were solar powered. RTGs are not as plentiful as solar panels. Sending an RTG on rover B means some other space mission doesn't happen because they cannot get an RTG.

chriskanan on Aug 3, 2020 | [–]

That's a good point. I forgot about the RTG shortage.

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