souther_lights

The Southern Lights (aurora australis) as seen from the IMAGE satellite. Auroras are caused by the collision of high-energy particles with the atmosphere. On Earth, our auroras are often the result of particles from the solar wind. Credit: NASA

The Southern Lights (aurora australis) as seen from the IMAGE satellite. Auroras are caused by the collision of high-energy particles with the atmosphere. On Earth, our auroras are often the result of particles from the solar wind. Credit: NASA