Scientists: Martian mud cracked in a manner that only happens after repeated cycles of drying
The evidence came from photographs snapped by the NASA bot of the dry, dusty Martian surface marked by a series of hexagonal shapes that indicate mud covered the surface before drying and cracking.
The cracks themselves are mere centimetres deep, which the boffins said suggests short wet-dry cycles "were maintained at least episodically in the long term," which would be yet another favorable condition for the past emergence of life on Mars.
I just can't suspend my disbelief with that theory. The thing I get caught up on is technology would still exist, knowledge would have gotten passed down.
The survivors of Mars would have been a small number of billionaires and their hangers on. Martian Elon Musk couldn't resist the temptation to be treated like a god.