Scientists Detect Shape-Shifting Along Earth’s Solid Inner Core
Scientists of course cannot cut into Earth and directly observe its insides. Instead, their knowledge is inferred from the vibrations generated by earthquakes that pass through the planet. The speed and the direction of the seismic vibrations change depending on the density and the elasticity of the rocks.
The surface of the Earth’s inner core may be changing
The Earth’s inner core is 3,000 miles below the surface and was thought to be a solid sphere held by gravity in the molten outer core. Recent studies show that the inner core’s rotation rate or shape can change over years or decades. This was found through variations in seismic waves from repeated earthquakes.
Earth's inner core may have changed shape, according to researchers studying unknown transformations deep within the planet.
Earth's inner core is undergoing structural transformation. Located 3,000 miles below the Earth's surface, the inner core is anchored by gravity within the molten liquid outer core. Until now the ...
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Scientists finally have an answer for a long-standing question: what is inside the moon?The 2011 study found evidence of a solid inner core on the Moon with a radius of about 240 kilometers and a density of approximately 8,000 kilograms per cubic meter. The composition of the lunar ...
If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. A new study published in Nature Geoscience claims that the Earth’s inner core may ...
By looking at the seismic vibrations from beneath the surface, scientists can put together a picture of the composition of ... convection associated with inner core growth," the authors of the ...
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