Earth's inner core is dominated by iron, which can exist as a solid material in more than one crystallographic form. (This quality allows iron to combine with other elements to form alloys.) Iron's most stable form at room ...
Earth Sciences
Mar 13, 2023
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30
Oxygen is the key substance for life and one of the most abundant elements in the Earth. However, it's still unknown whether oxygen is present (and in which form it may exist) in the inner core, which is composed of almost ...
Earth Sciences
Dec 13, 2022
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15
A collaborative research group has succeeded, for the first time, in measuring the speed of sound of pure iron under pressures similar to the Earth's inner core boundary.
Earth Sciences
Nov 28, 2022
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26
Steel rusts by water and air on the Earth's surface. But what about deep inside the Earth's interior?
Earth Sciences
Aug 31, 2022
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630
In May 1997, a large earthquake shook the Kermadec Islands region in the South Pacific Ocean. A little over 20 years later, in September 2018, a second big earthquake hit the same location, its waves of seismic energy emanating ...
Earth Sciences
Jun 24, 2022
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813
Bound for an asteroid of the same name, the orbiter is undergoing final preparations for its August launch.
Space Exploration
May 5, 2022
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17
Earth's core, the deepest part of our planet, is characterized by extremely high pressure and temperature. It is composed of a liquid outer core and solid inner core.
Planetary Sciences
Feb 9, 2022
1
204
The discovery of more than 4,500 extra-solar planets has created a need for modelling their interior structure and dynamics. As it turns out, iron plays a key role.
Planetary Sciences
Jan 14, 2022
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125
Far below you lies a sphere of solid iron and nickel about as wide as the broadest part of Texas: the Earth's inner core. The metal at the inner core is under pressure about 360 million times higher than we experience in ...
General Physics
Nov 11, 2021
0
732
For reasons unknown, Earth's solid-iron inner core is growing faster on one side than the other, and it has been ever since it started to freeze out from molten iron more than half a billion years ago, according to a new ...
Earth Sciences
Jun 3, 2021
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