They indicate past environmental conditions and play an important role in catastrophic events. Clay minerals exist when minerals that originally contain no water are hydrated and altered. These ...

ESA/DLR/FU Berlin Thousands of hills and mounds on Mars have been found to contain layers of clay minerals, which formed when running water interacted with the rocks during a period when Mars ...

Researchers have discovered thousands of hills on Mars. These mounds contain clay minerals, indicating the planet once had water. The findings reveal that liquid water existed nearly four billion ...

Source: ESA Thousands of hills and mounds on Mars contain clay minerals that were formed when water interacted with the planet's surface billions of years ago. This discovery provides further ...