The Aurora Borealis has been fascinating people for centuries, with ancient cultures believing it was a sign from the gods. The Vikings thought it was the reflection of the shields of fallen warriors, while the Greeks believed it was the glow of the sun shining through the gates of the underworld.
But it's not just ancient cultures that were captivated by the Aurora Borealis - scientists have been studying it for years, trying to figure out the secrets behind this dazzling display. They've discovered that the colors of the Aurora Borealis are determined by the energy of the particles and the altitude at which they collide with the atmosphere.