News tagged with silicates

What are asteroids made of?

What are asteroids made of? Asteroids are made mostly of rock—with some composed of clay and silicate—and different metals, mostly nickel and iron. But other materials have been found in asteroids, as well.

dateSep 14, 2015 in Space Exploration
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Does dark magma lurk in deep Earth?

( —A key to understanding Earth's evolution is to look deep into the lower mantle—a region some 400 to 1,800 miles (660 to 2,900 kilometers) below the surface, just above the core. Data have suggested that deep, ...

dateNov 13, 2014 in Earth Sciences
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