Read the full story in the Washington Post.
Humans have been regularly traversing the Atlantic Ocean for going on six centuries, establishing the most efficient trade routes to haul people and goods, sharing details of the best places to pick up the speediest winds, occasionally using radar and satellites to thread a plane through a Category 5 hurricane.
But for all our knowledge of how to get over the Atlantic, we still know decidedly little about what, exactly, is beneath it.
Exhibit A, it would seem, is a discovery made this week 160 miles off the coast of Charleston: An enormous series of coral reefs that, combined, are nearly the length of Delaware. Scientists say it may have been growing on the ocean floor for as long as modern humans have been on the planet.