In the mid-20th century, when people looked at a map of the world, they saw the familiar continents surrounded by vast, ...

In the coming months, the Ocean Seeker will undergo a $2-million retrofit to carry sophisticated sonars and lasers capable of capturing highly detailed images of the floor of the Atlantic Ocean.

The Mid-Atlantic Ridge stands out in glorious detail on this map of the Atlantic Ocean Floor by Bruce Heezen and Marie Tharp. Painted by Heinrich C. Berann, ...