I was also wondering why not use a heat pump into the thick atmosphere. Turns out there is a NASA design for that: https://www.newscientist.com/article/dn12905

I was also wondering why not use a heat pump into the thick atmosphere. Turns out there is a NASA design for that: https://www.newscientist.com/article/dn12905-antique-fridge-could-keep-venus-rover-cool/ https://www.newscientist.com/article/dn12905-antique-fridge-...