Cross-section of the Earth (left) and the exoplanet Kepler-138 d (right). ... These water layers make up more than 50% of its volume, or a depth of about 2000 km. The Earth, ...

An artist's rendition of a cross-section of Earth. The innermost layer, the inner core, is a 1,500-mile-wide ball of iron. CHRISTOPH BURGSTEDT / SCIENCE PHOTO LIBRARY via Getty Images ...

This is a cross-section of Earth's ozone layer as measured by the limb profiler, part of the Ozone Mapper Profiler Suite that's aboard the Suomi NPP satellite.

Looking down on the cross section, you can see ridges (purple) made of hard, compressed sediment deposited during wet periods. Erosion has eaten away at softer sediments (gray) originally deposited in ...

In 1970, Russian geologists drilled a nine-inch wide hole into the Kola Peninsula’s Baltic Shield — a part of Earth’s crust with rock well over a billion years old — and began digging as deep as they ...

Below the mantle is the Earth's core, which has an inner and outer section. The outer core extends for around 1,400 miles and mostly consists of liquid iron and nickel.

Unexpected new findings by a University of Maryland team of geochemists show that some portions of the Earth's mantle (the rocky layer between Earth's metallic core and crust) formed when the ...

IceCube has measured the absorption of atmospheric and astrophysical neutrinos in the Earth, and found that the interaction cross-section of multi-TeV neutrinos is within 50 per cent of the ...