Atlantic Ocean Floor Map. Groundbreaking map of the ocean floor created by technician Marie Tharp and Professor Bruce Heezen, image via The Earth Institute, Columbia University. Together, Marie and Bruce rewrote 20th century geophysics by creating the first systematic, comprehensive map of the entire ocean floor. This paved the way for general acceptance of the theories of continental drift and plate tectonics.
The Supercontinent Pangaea of the Triassic Period - A map of the Earth around 250 to 200 million years ago featuring Gondwanna, Laurasia and Pangaea the Supercontinent. Populated with Dinosaurs, Therapsids, Pterosaurs, and other prehistoric beasties.
Esa's satellite Swarm launch to map Earth's magnetism
The Swarm mission to map the Earth's global magnetic field has launched. Swarm's data should help scientists understand better how the field is generated, and why it appears to be weakening. The strength has fallen by some 15% in the past two centuries. The movement of the north geomagnetic pole has also accelerated. Researchers have speculated that Earth may be on the cusp of a polarity reversal. This has not happened for 780,000 years.