Northern Lights in Alta

The aurora is a glow that appears in the evening sky in areas near the poles. It's due to the impact of solar wind particles on the magnetic field of Earth. In the northern hemisphere it is known as the aurora borealis, named by Galileo Galilei, in reference to the Roman goddess of dawn Aurora and her son who represents the northern winds. The are the most intense from September to October and from March to April. In the southern hemisphere the are known as the aurora australis. According to Norse folklore: The glow is from Vikings going to war, mounted on horses and armed with spears and helmet ...