Maybe you already know that she created some of the first maps of the ocean floor and helped discover plate tectonics. Here are some lesser-known facts about this history-making cartographer.
seafloor mapping Archives - State of the Planet
On the 100th anniversary of her birth, her grit and brilliance are as legendary as her work.
The pioneering mapmaker explains how she and colleagues discovered underwater mountain ranges 40,000 miles long, and helped to prove that the continents move.