The Atlantic’s journalism can help you make sense of what’s happening in America and why it matters for the rest of the world. Subscribe starting at CA$1.65 a week and get a year of reporting, insight, and ideas from Jeffrey Goldberg, David Frum, Anne Applebaum, and more. | The Atlantic

8.3K views · 1.5K reactions | Discover striking art and strong argument in The Atlantic. Explore all of our print and digital journalism for less than $5 a month. | The Atlantic | Facebook

Subscribe to read the full August issue, and get unlimited access to The Atlantic’s journalism, for less than $1.50 a week. | The Atlantic | Facebook

She mapped the hidden mountains beneath the Atlantic Ocean. #ScienceHistory #Geology #WomenInSTEM Before Tharp's work, most scientists believed the ocean floor was a flat, featureless plain of mud accumulated over billions of years. Her discovery of the 40,000-mile-long mid-ocean ridge system was the final proof needed for the theory of plate tectonics, moving geology from speculation to hard science. Despite this, her name was often left off the academic papers citing the map, and she worked in