The Earth has a layered structure made up of the crust, the mantle, the outer core and the inner core. These layers each have different structures and properties. Rock types There are three types ...

Earthquakes generate two types of waves ... at the ICB still has some implications for Earth’s long-term evolution.” Mindy Weisberger is a science writer and media producer whose work has ...

The cool conditions which have allowed ice caps to form on Earth are rare events in the planet's history and require many complex processes working at once, according to new research.