Aggregated measurements from millions of smartphones could be used to create a comprehensive map of the Earth's ionosphere ... are located across the globe, there is greater coverage of phones ...

On the second floor of the Library of Saint Marks in Venice, a map of the world occupies an entire room – and rightfully so, considering its historical significance and imposing size.

They have to compromise. Map makers use map projections to transform the Earth onto a flat surface. One of the most popular world map projections is known as the Mercator Projection. You’ll have ...