The story of Pluto and its largest moon, from discovery through the New Horizons flyby--Provided by publisher.

In the mid-1560s Spanish explorers marched northward through Mexico to the farthest northern reaches of the Spanish empire in Latin America. They beheld an impressive site known as Casas Grandes in the Mexican state of Chihuahua. Row upon row of walls featured houses and plazas of what was once a large population center, now deserted. Called Casas Grandes (Spanish for “large houses”) but also known as Paquimé, the prehistoric archaeological site may have been one of the first that Spanish explorers encountered. The Ibarra expedition, occurring perhaps no more than a hundred years after the site was abandoned, contained a chronicler named Baltasar de Obregón, who gave to posterity the first description of Paquimé: ". . . many houses of great size, strength, and height . . . six and seven stories, with towers and walls like fortresses for protection and defense against the enemies who undoubtedly used to make war on its inhabitants . . . large and magnificent patios paved with enormous and beautiful stones resembling jasper . . ." Casas Grandes, now a UNESCO World Heritage Site, is under the purview of the Instituto Nacional de Antropología e Historia, which oversees a world-class museum near the ruins. Paquimé visitors can learn about the site’s history and its excavations, which were conducted under the pioneering research of Charles Di Peso and Eduardo Contreras Sánchez and their colleagues from INAH and the Amerind Foundation. Based on a half century of modern research since the Joint Casas Grandes Project, this book explores the recent discoveries about important site and its neighbors. Drawing the expertise of fourteen scholars from the United States, Mexico, and Canada, who have long worked in the region, the chapters revel new insights about Paquimé and its influence, bringing this fascinating place and its story to light.

For millenia humans have considered Mars the most fascinating planet in our solar system. We’ve watched this Earth-like world first with the naked eye, then using telescopes, and, most recently, through robotic orbiters and landers and rovers on the surface. Historian William Sheehan and astronomer and planetary scientist Jim Bell combine their talents to tell a unique story of what we’ve learned by studying Mars through evolving technologies. What the eye sees as a mysterious red dot wandering through the sky becomes a blurry mirage of apparent seas, continents, and canals as viewed through Earth-based telescopes. Beginning with the Mariner and Viking missions of the 1960s and 1970s, space-based instruments and monitoring systems have flooded scientists with data on Mars’s meteorology and geology, and have even sought evidence of possible existence of life-forms on or beneath the surface. This knowledge has transformed our perception of the Red Planet and has provided clues for better understanding our own blue world. Discovering Mars vividly conveys the way our understanding of this other planet has grown from earliest times to the present. The story is epic in scope—an Iliad or Odyssey for our time, at least so far largely without the folly, greed, lust, and tragedy of those ancient stories. Instead, the narrative of our quest for the Red Planet has showcased some of our species’ most hopeful attributes: curiosity, cooperation, exploration, and the restless drive to understand our place in the larger universe. Sheehan and Bell have written an ambitious first draft of that narrative even as the latest chapters continue to be added both by researchers on Earth and our robotic emissaries on and around Mars, including the latest: the Perseverance rover and its Ingenuity helicopter drone, which set down in Mars’s Jezero Crater in February 2021.

Now you can share the experiences of the first U.S. scientists who set about discovering the nature of North American deserts. "This is a fascinating account of how these pioneer ecologists laid the foundations for our modern knowledge of plant adaptation to desert environments. . . . It is well done." (American Scientist)

From the high plains of Canada to caves in the southeastern United States, images etched into and painted on stone by ancient Native Americans have aroused in observers the desire to understand their origins and meanings. Rock paintings and engravings can be found in nearly every state and province, and each region has its own distinctive story of discovery and evolving investigation of the rock art record. Rock art in the twenty-first century enjoys a large and growing popularity fueled by scholarly research and public interest alike. This book explores the history of rock art research in North America and is the only volume in the past twenty-five years to provide coverage of the subject on a continental scale. Written by contributors active in rock art research, it examines sites that provide a cross-section of regions and topics and complements existing books on rock art by offering new information, insights, and approaches to research. The first part of the volume explores different regional approaches to the study of rock art, including a set of varied responses to a single site as well as an overview of broader regional research investigations. It tells how Writing-on-Stone in southern Alberta, Canada, reflects changing thought about rock art from the 1870s to today; it describes the role of avocational archaeologists in the Mississippi Valley, where rock art styles differ on each side of the river; it explores discoveries in southwestern mountains and southeastern caves; and it integrates the investigation of cupules along GeorgiaÕs Yellow River into a full study of a site and its context. The book also compares the differences between rock art research in the United States and France: from the outset, rock art was of only marginal interest to most U.S. archaeologists, while French prehistorians considered cave art an integral part of archaeological research. The bookÕs second part is concerned with working with the images today and includes coverage of gender interests, government sponsorship, the role of amateurs in research, and chronometric studies. Much has changed in our understanding of rock art since Cotton Mather first wrote in 1714 of a strange inscription on a Massachusetts boulder, and the cutting-edge contributions in this volume tell us much about both the ancient place of these enduring images and their modern meanings. Discovering North American Rock Art distills todayÕs most authoritative knowledge of the field and is an essential volume for both specialists and hobbyists.