They are very tiny, but they are a key source of information when it comes to Earth's evolutionary history: pollen grains are ...

Flowers have been brightening Earth much longer than scientists previously believed—by at least two million years. In a new study, researchers from Leibniz University Hannover and the University of ...

A new archeology is being developed based on evidence of human activity in the Earth’s sedimentary record, and archeologists ...

Sedimentary rocks are formed by small rock pieces which are transported by rivers and laid down in layers. Chalk is a sedimentary rock. Metamorphic rocks are formed when another rock is under heat ...

If Mars harbored life in its early history, fossils might be found within such sedimentary rock layers, according to planetary researchers. NASA plans to send numerous rovers and satellites to ...

"The Tonto Group of Grand Canyon holds a treasure trove of sedimentary layers and fossils chronicling the Cambrian Explosion ...