I didn’t realise curiosity was still creaking around out there doing science. I also didnt realise it could conduct experiments on old samples. A sensible but extraordinary capability.

Skeptics guide podcast was saying once that even if positive evidence of life on Mars was discovered by a rover, it would need to be confirmed / reproduced by a lab on Earth before being credible science.

IIRC there’s a mission plan for an uncrewed mission to return samples from the rovers but its not funded or scheduled.