There are three types of rock found on Earth. These are igneous, metamorphic and sedimentary. Each rock type is formed in a different way. For example, the rock malachite is mostly made of the ...

The trick to a successful search for fossils is finding the proper place. After all, paleontologists rarely select their sites at random. Instead, they consider an assortment of areas — comparing the ...

This image shows a crater on the floor of Eos Chasma, part of the Valles Marineris canyon system. Craters on Mars are useful for geologists because they provide cross-sections into the subsurface. The ...