We're celebrating Marie Tharp, who was born on this day in 1920! A geologist and oceanographer, Marie was the first person to map the Atlantic ocean floor along with Bruce Heezen. As part of her extensive work, the concept of continental drift and plate tectonics became widely accepted in the scientific community. #otd You can watch our full animation about Marie Tharp's research here: https://www.youtube.com/watch?v=TgfYjS0OTWw | Royal Institution of Great Britain