Learn about the science of the Aurora Borealis with iMinds insightful knowledge series. The aurora borealis, often referred to as the northern lights, is a natural light-show that appears in the sky around the north magnetic pole. Auroras can sometimes be seen in other places of the world, but not as clearly. In the southern hemisphere, the phenomenon is called "aurora australis." The aurora borealis occurs because of an interaction between solar wind and the Earth's magnetic field. When the sun's gases explode, some of the particles are blown away in a phenomenon known as solar wind. The particles in the solar wind travel at speeds of over 600,000 miles per hour and take two to three days to reach the Earth. iMinds brings targeted knowledge to your eReading device with short information segments to whet your mental appetite and broaden your mind.

Popular natural history writer Savage takes readers inside the mystery of the beautiful phenomenon of the aurora borealis, explaining how aurorae happen and how humans have stood in awe and devised whole cosmologies around them since time immemorial. Over 60 photos, 34 in color. Map.

Electric green pierced by neon blue, shocking pink spinning into violent red, and shimmering purple sidled up against deep indigo: never before have you seen such high-octane colors in the sky, and never before has a book shown the northern lights-aurora borealis-in such vivid color. In Northern Lights, photographers Calvin Hall and Daryl Pederson bring to print nearly a hundred photographs of this amazing natural phenomenon, shot from remote locations all over Alaska and using no filters or digital enhancement. Just as fascinating are the legends, myths, and science surrounding this polar phenomenon, described by George Bryson. As 2002 marks the peak viewing time of the northern lights in an eleven-year cycle, this book brings the elusive magic of the northern lights to stargazers near and far.

Mindy Dwyer captures the magic of the Northern Lights in a story that is written like a legend passed down through generations. With her bright, luminous illustrations and clear language, Dwyer tells the story of Aurora, a young girl who takes a journey of discovery and collects the colors from the sky to comfort her. Full color.

Authoritative account written for the general reader.