Creating the first map of the world's ocean floor
- Tuesday, 14 April 2015
The ability to imagine the contours of the ocean floor led cartographer Marie Tharp to forever change our understanding of the forces shaping the planet. Revealed to the world in 1977, this is the first map of the Earth's ocean floor. Today we know more about the topography of the Moon and Mars than we do about our own planet's sea floor.