Magnus’s map was massive. The original was 23 square feet, and it depicted a squashed yet detailed portrait of Northern Europe. This includes what is now Denmark, Estonia, Finland, Iceland ...

and within northern Europe have been cancelled today because of fears that a vast cloud of volcanic ash spreading from an Iceland volcano could bring down passenger planes (map of northern Europe).

A map from the center showed the aurora would ... Stunning photos showed the vivid display of the northern lights over Europe and the U.K. after nightfall there on Friday.