Arcadia Borealis was first published in 1938. Minnesota Archive Editions uses digital technology to make long-unavailable books once again accessible, and are published unaltered from the original University of Minnesota Press editions.

The planet Mars has been a subject of wonder for millennia, as attested by its place in mythology, by later speculation about its canals, and by the scientific and public excitement over the Viking mission. Although the scientific literature about the planet is voluminous, no comprehensive treatment of the results of modern spacecraft exploration has yet been made available. This volume fills that gap by providing a summary of what is presently known about Mars and identifying many puzzles such as polar cap variance, occurrence of dust storms, and the possible location of water. The introductory chapter cites questions, controversies, and milestones in the study of Mars, and also includes an annotated book list, basic data about the planet, and a guide to Martian seasons. A chapter on telescopic observation credits the contributions made by many amateurs that have advanced our knowledge of variations observed on Mars. A chapter on spacecraft exploration, by an American and a Russian author who have participated in all Mars missions, includes a revelation of an additional Soviet attempt. Twenty-nine technical articles cover geophysics; bedrock geology; surface; atmosphere; exosphere and magnetic field; and climate history. Two chapters address the search for life on Mars; three concluding chapters consider the Martian satellites. An indispensable reference for scientists, Mars will also serve as a complete sourcebook for serious amateur astronomers.

Out of Our Heads is the Rare Book That is Unafraid to celebrate rock'n' roll's druggy good times-before the uptight killjoys and self-righteous reformists came along and spoiled the party.

Joseph G. Stolp settled in Aurora on June 12, 1837, when there were 33 residents in the pioneer village. Stolp's vision helped shape the city's destiny. The Aurora Electric Light and Power Company used 2,000-candlepower electric lamps for the first streetlights in 1881. Today, the "City of Lights" is home to 200,000 residents and a diverse population with 42 percent of Hispanic heritage. The character of her people made Aurora an enterprising city. Notable residents include Maud Powell, violin virtuoso, and Harry C. Murphy, president of the Burlington Railroad. Profiles of Greek immigrant George Andrews and Aurora-born artist Wendell Minor, as well as Polish leader Bruno Bartoszek, color these pages with biographies of greatness. Astute business leaders include Robert Bonifas, Ken Nagel, Louis Leonardi, and Frank C. Schaefer. Dr. Stephanie Pace Marshall, Dr. Christine Sobek, and Dick Schindel give testament to adroit educational leadership. Legendary Locals of Aurora chronicles how the city's history has been blessed with noble and innovative leaders.

What are our motivations for going into space? Where does our long-term space future lie? Why, and how, should we strive to reach, if not for the stars, at least for the Moon and Mars? This exciting book looks first at the progress that has already been made in our attempts to explore and expand beyond the Earth. Current and past space technologies and space stations are described, and the effects of the space environment on the human body are explained. A discussion of the merits of the robotic exploration of space is followed by a look at our exploration of the Moon and Mars. Final chapters touch on propulsion methods required for leaving our solar system, and ask which of the possibilities for future space travel is most likely to succeed. This thought provoking book will appeal to all those with an interest in the future of space exploration.