Evidence of rain-driven climate on Mars found in bleached rocks scattered in Jezero crater

Here’s [the original press release published by Purdue University](https://www.purdue.edu/newsroom/2025/Q4/findings-suggest-red-planet-was-warmer-wetter-millions-of-years-ago/).

Exact same words, but with no ads or tracking.

Phys.org is a content aggregator. They copy freely available content and add their own ads, tracking, etc.

Less than a mile from my house there is a kaolinite deposit, on a granite mountainside. The granite has decomposed into 3-5mm quartz crystals, in a matrix of kaolinite.

Just water and time, that’s all it took.