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Hubert Staudigel chips away at volcanic rock while Hanna Asefaw takes down notes at Cape Armitage on Ross Island. Tracking Earth's Past Magnetic Moments
Science / Earth
Tuesday March 14, 2017

The key to understanding Earth's prehistoric magnetic field lies hidden in the rocks. Specifically, igneous rocks, basalts that cooled from liquid magma spewed out of volcanos. Geologist Lisa Tauxe of the University of California, San Diego, and her team, traveled to Antarctica to collect rock samples that can tell them more about the planet's magnetic field over the past few million years. The research was funded by the National Science Foundation, which manages the U.S. Antarctic Program.
A high-resolution satellite photo of McMurdo Station shows off the detailed images that the Polar Geospatial Center has access to. The Polar Geospatial Center
Science / Earth
Wednesday November 30, 2016

The icy surface of Antarctica is a dynamic environment; and conditions can change drastically from year to year or even week to week. Because of these endless changes, making a map of the ever-changing ice cover can be like putting together a map of the clouds. The Polar Geospatial Center has been using satellite data to provide invaluable, up-to-date information about surface conditions across the continent for nearly a decade.

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Curator: Michael Lucibella, Antarctic Support Contract | NSF Official: Peter West, Office of Polar Programs