The characteristics of the rocks that hold fossils can be as informative as the fossils themselves. There are three main types of rock: igneous rock, metamorphic rock, and sedimentary rock. Almost all ...

Sedimentary rocks close sedimentary rockSedimentary rocks are those which have been formed due to sediments that have built up over a long period of time, usually under water. are formed from ...

There are three main rock types: igneous, sedimentary and metamorphic. These rocks are made of minerals that all have ...

NASA's Perseverance rover has discovered a strange object, resembling a cluster of spider eggs, on Mars, sparking intrigue ...