Contents Pages by Subject

Underwater Exploration and Living

Subject Photo
Article Image, by Jill Neimark

The discovery of a legendary, lost shipwreck in North America has pitted treasure hunters and archaeologists against each other, raising questions about who should control sunken riches.

Article Image by brian wang

About 71% of the Earth is covered by the World Ocean for which the bottom topography (bathymetry) is far less known than the surfaces of Mercury, Venus, Mars, and several planets' moons, including our own.