From PBS’ Digital Studios, It’s Okay to Be Smart‘s The Auroras, Earth’s Art Show! Learn More about the invisible forcefield — a magnetic field — that protects all life on Earth from space radiation, primarily Sun’s solar winds that bombard our atmosphere constantly. jtotheizzoe:
All that science has a beautiful side effect: It makes the auroras! The Northern and Southern lights are the result of the solar wind and its dance with Earth’s magnetic field and polar atmosphere. It’s like our own cosmic light show!