Composition of the atmosphere The air ... with around 20% oxygen and other trace gases. The Earth has a layered structure made up of the crust, the mantle, the outer core and the inner core.

Geological and earth sciences/geosciences largely focus on the physical aspects of the Earth – such as its composition and structure – as a fully integrated system. Geology majors can use ...

An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. Human ...

Other observational techniques including seismology and in-situ sampling have revealed the structure and composition of planetary interiors (primarily for Earth and its Moon, but soon for Mars as well ...

More than 4,000 naturally occurring minerals—inorganic solids that have a characteristic chemical composition and specific crystal structure—have been found on Earth. They are formed of simple ...

Are their atmospheres more like Neptune or like Earth? Is there a smooth transition from one type of planet to the other is there a more dominant unknown type of planet composition and structure we ...

It is unclear what these structures are. If they were anywhere else, they could be portions of tectonic plates that have sunk ...

Minerals underground may be part of the solution to global climate change. The most famous greenhouse gas, carbon dioxide (CO 2), can react with some minerals found deep underground to form stable ...

The Earth has a layered structure made up of the core, the mantle and the crust. Different elements are present in different parts of the Earth’s structure. The crust is made from enormous ...

After decades of debate, scientists confirm the moon has a solid iron core—mirroring Earth’s inner structure and reshaping how we understand our nearest neighbor. New data and advanced ...

On ten thousand to million years time scales, climate dynamics on the Earth’s surface are driven ... Therefore, we measured the Osmium isotope composition of the South Atlantic and the Northwest ...