Chatgpt made a shorter summary
“Decades of seismic data reveal Earth’s inner core is rotating slower than the surface. USC researchers analyzed seismic waves from earthquakes and nuclear tests, showing the inner core’s movement. They found that changes in seismic wave travel times indicated the slowdown. John Vidale from USC confirmed the inner core, a hot, dense iron and nickel ball 3,200 miles below, had slowed for the first time in decades.”
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What is geoscience?
Geoscience (also called Earth Science) is the study of Earth. Geoscience includes so much more than rocks and volcanoes, it studies the processes that form and shape Earth’s surface, the natural resources we use, and how water and ecosystems are interconnected. Geoscience uses tools and techniques from other science fields as well, such as chemistry, physics, biology, and math! Read more…
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