Describes how different animals, including beavers, squirrels, and opossums, use their tails as protection against predators, for balance, and to communicate.
Luminous full-color photographs and a lucid text explore how Earth's magnetic field and solar winds unite to create the magnificent aurora borealis displays over the polar regions of the planet.
Explains in easily understandable terms exactly how spacecraft with reflective sails can be propelled by sunlight to hitherto unreachable parts of the galaxy.