The Earth is currently being battered by a storm of charged particles from the Sun, the largest in five years, which could disrupt power grids, satellite navigation and plane routes.
(BBC NEWS) London - The storm will bombard the Earth's magnetic field throughout Thursday.
It was triggered by a pair of solar flares - the largest of their kind - earlier this week.
As a result, the Northern Lights may be visible at lower latitudes.
The effects will be most intense in polar regions, and aircraft may be advised to change their routings to avoid these areas.