Rocket into Northern Lights studies the "invisible aurora's" electric currents
Friday, February 6, 2015 - 08:30
in Astronomy & Space
The aurora borealis lights up the Arctic night skies. Also called the Northern Lights, the phenomenon is the result of beams of charged particles tracing along the Earth's magnetic field and entering the atmosphere. When they collide with oxygen and nitrogen in the atmosphere, the gases glow green, red and blue depending on the beam energy.