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Before satellite imagery, scientists navigated by matching up geologic formations with those shown in aerial photographs—a tough task in Antarctica, where there aren't many visible features.

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Article

The Movement of Ice Sheets

More than any other, the West Antarctic Ice Sheet has the greatest potential to raise sea levels all over the world. Learn how scientists are studying it, both in the field and back in the lab.

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Article

Global Positioning System

The compass is great navigation tool—unless you're in Antarctica, where the magnetic pull of the nearby South Pole is so strong you can't get an accurate reading. Thank goodness GPS works everywhere!

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Activity

Locating a Point

The full force of the Antarctic winter is just days away, and you're deep into your research on a fallen meteorite. How can you mark its exact location for your return in six months?

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