How much of the earth is unexplored?

What is left of the earth that is unexplored is approximately 140 million square miles of ocean floor.

This is equal to two and a half times the surface area of the earth’s islands and continents.

How thick is the ice that covers Antarctica? The continent Antarctica is almost completely covered with an ice sheet that is about 6,500 feet thick.
When did Great Britain become the United Kingdom? The United Kingdom of Great Britain was formed in 1707, when England, Scotland, and Wales were united by the Act of Union. But the United Kingdom of Great Britain and Ireland was not…
What is Saint Elmo’s fire? Named for the patron saint of sailors, Saint Elmo's fire is actually discharges of electricity that occur during storms. These discharges are seen as blue or bluish white lights at the tips of…
Why is America not named after Columbus? Columbus did not realize he had discovered a new continent that would be named America, but Amerigo Vespucci, who explored the New World between 1497 and 1504, did. German mapmaker Martin Waldseemuller first…
Who were the warring tribes in the original One Million B.C. (1940)? The warring tribes in the original One Million B.C. were the Rock People, represented by Tumak (Victor Mature), and the Shell People, represented by Loana (Carole Landis). The roles were taken by John…
How much does a B-2 bomber cost? At about $865 million each, the radar-evading "Stealth" strategic B-2 bomber built by Northrop for the U.S. Air Force is considered the most expensive weapons system in American history.