How Quasars Help Map the Movement of Earth's Tectonic Plates
In short: To understand how our own planet shifts, scientists are looking millions of light-years into the past. This video explains how researchers use distant celestial objects to measure subtle movements on Earth.
By observing quasars—extremely bright and distant active galactic nuclei—researchers can track the movement of tectonic plates over vast periods of time. Because these objects are so far away, they serve as fixed reference points in the deep cosmos.
This method allows scientists to measure how much the ground under our feet has shifted by comparing current positions against historical data provided by these distant markers. It offers a unique perspective on geological change by using the universe as a cosmic yardstick.
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- Summary by Intellect · source: We Use Black Holes to Study Tectonic Plates
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