The hidden water reservoir is shockingly larger than previously thought—holding more than half the volume of Lake Tahoe.

NASA will explore two different strategies for fetching Mars rocks collected by the Perseverance rover, and there's a chance ...

Dozens of samples of rock and sediment collected from Mars that could be used to detect ancient microbial life could be ...

The overarching goal of the Mars Sample Return Program is to deepen our understanding of the universe and investigate whether ...

It turns out the answers are in Earth's rocks. Even the Greeks and Romans realized that layers of sediment in rock signified old age. But it wasn't until the late 1700s -- when Scottish geologist ...

University of Oregon revealed its scientists were among the group that discovered a massive aquifer, described by National Geographic as a “body of rock and/or sediment that holds groundwater,” below ...

Almost all fossils are preserved in sedimentary rock. Organisms that live in topographically low places (such as lakes or ocean basins) have the best chance of being preserved. This is because they ...

"Here we are providing independent evidence of rock cooling and miles of exhumation ... the Snowball Earth period deposited nutrient-rich sediment in the ocean that could have provided a fertile ...