Category Archives: Earth’s structure
Ancient jars found in Judea reveal Earth’s magnetic field is fluctuating, not diminishing
Albert Einstein considered the origin of Earth’s magnetic field one of the five most important unsolved problems in physics. The weakening of the geomagnetic field, which extends from the planet’s core into outer space and was first recorded 180 years ago, has raised concern by some for the welfare of the biosphere. But a new […]
Read moreNew theory explains how Earth’s inner core remains solid despite extreme heat
Even though it is hotter than the surface of the Sun, the crystallized iron core of the Earth remains solid. A new study from KTH Royal Institute of Technology may finally settle a longstanding debate over how that’s possible, as well as why seismic waves travel at higher speeds between the planet’s poles than through […]
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