Audio Guide：

When a sun storm occurs on the surface of the sun, the sun radiates streams of charged particles, which collide with the atoms, molecules or ions in the ionosphere in Earth’s atmosphere, causing them to give off light that creates aurora. Different gas particles will emit different colors of light. For example, nitrogen atoms mostly give off red light, oxygen atoms green light, argon atoms blue light, and neon atoms red light. When the charged particles arrive Earth, they gather at the north and south poles of Earth due to the planet’s magnetic field. Therefore, aurora is only seen in high-altitude regions.

This aurora simulator offers visitors a chance to see the colorful changes of different gases.