Zhurong Finds First Primary Evaporites on Mars: Crystals May Hold 757-Million-Year-Old Brine

Mars primary evaporite discovery: China’s Zhurong rover has confirmed the first primary gypsum crystals ever found on Mars, formed from brine roughly 757 million years ago in Utopia Planitia. The crystals may contain sealed fluid inclusions preserving ancient Martian water chemistry, making them