The discovery was made in the Jezero Crater, an area where Perseverance has been searching for ancient sedimentary rocks. Perseverance, which landed in the Jezero Crater in 2021, has already collected ...

Southwestern Ohio's limestone (a sedimentary rock) is saturated with life — life from about 450 million years ago, that is. Our local limestone layers reflect times of relative prosperity for the wide ...

The basalt which makes up the Giant’s causeway is an igneous rock. Sedimentary rocks are formed by small rock pieces which are transported by rivers and laid down in layers. Chalk is a ...

There are three main types of rock: igneous rock, metamorphic rock, and sedimentary rock. Almost all fossils are preserved in sedimentary rock. Organisms that live in topographically low places (such ...

They accidentally discovered a band of sedimentary rock that contained unusually high levels of a rare element, iridium. Chemical dating techniques put the rock at around 65 million years old.

Stromatolites, layered deposits of sedimentary rock, are formed from layers of cyanobacteria, calcium carbonate and trapped sediment. Although Greenland’s earliest stromatolites are no longer ...