The Earth's cool, thin outer layer, known as the crust, mostly consists of solid rock and is generally around 20-30 miles thick in continental areas, although in oceanic regions the average ...

The beginnings of a strange layer of molten rock deep inside the ... the moon was formed from the debris ejected into orbit around Earth after a collision between the proto-Earth and a Mars ...

It's smaller than the four gas giants ... shuffles continents around and causes earthquakes, volcanoes and the formation of mountain ranges. Related: Earth's layers: Exploring our planet ...

In the mesosphere, these extraterrestrial particles charge up local gas molecules ... the far more important ozone layer in Earth's stratosphere (which sits around 9 to 18 miles, or 14.5 to ...

In high school science class, textbooks often feature a recognizable image of the Earth and all its layers—currently ... be measured by seismometers all around the globe, and by measuring ...

The Earth's interior is composed of four layers, three solid and one liquid ... which slowly move around, colliding to build mountains or rifting apart to form new seafloor.

Earth’s protective ozone layer ... few years ago not because it would eat at the ozone layer but because it is a heat-trapping greenhouse gas. The new report says that the ban would avoid ...

For decades, scientists have debated the nature and origin of what some experts consider the most anomalous and enigmatic layer of Earth ... Even though Earth has been around 4.5 billion years ...

or E' layer, is more than 60 miles (100 kilometers) thick — relatively slim compared with other sections of Earth's interior — and sits around 1,800 miles (2,900 km) beneath Earth's surface.

The newly identified molten layer is located 100 miles (161 kilometers) below the Earth’s surface ... 700 images taken from seismic detectors around the world and created a global map of ...