The Mercator world map, long a fixture in classrooms globally, makes the European Union appear almost as large as Africa. In reality, Africa is more than seven times bigger.

The Mercator world map, long a fixture in classrooms globally, makes the European Union appear almost as large as Africa. In ...

That may be about to change: NASA is preparing a brand new mission that will travel 1 million miles away from Earth in order to map the boundaries of the heliosphere, offering clues to scientists ...