Sedimentary rocks are formed from sediments that have settled at the bottom of a lake, sea or ocean, and have been compressed over millions of years. The sediment comes from eroded rocks carried ...

There are three types of rock; sedimentary, igneous and metamorphic. We call the study of rocks, and how they're formed, geology. Granite, an igneous rock, makes up most of the continents on Earth.

This 1930s educational film explores the natural landscapes, geological formations, and agricultural practices of the time. It features scenes of farmers tilling soil, majestic mountain roads ...

This link to water is why alien sedimentary rocks are rare. But they do exist. Certain asteroids, like Ryugu and Bennu, are rubble piles, essentially a strange space conglomerate—a type of ...

Images of layered geologic outcrops on Mars, captured by the Mars Orbiter Camera, appear to show sedimentary rocks. These outcrops may suggest that parts of ancient Mars once resembled a land of ...