
Graphic: NASA Earth Observatory
For decades, we have more detailed maps of the Moon’s surface than Earth’s ocean floor. Although ships equipped with sonar can capture highly detailed images of the seafloor, only about 25 percent of the ocean has been mapped this way. Scientists have long been working to do better.
Now, a NASA-supported research team has taken a major step forward by creating one of the most detailed maps of the seafloor to date, using data from the SWOT (Surface Water and Ocean Topography) satellite.
One of the most striking discoveries made through the SWOT satellite’s observations is the discovery of nearly 100,000 seamounts beneath the ocean’s surface.