Gaylord Nelson’s legacy is known and respected throughout the world. He was a founding father of the modern environmental movement and creator of one of the most influential public awareness campaigns ever undertaken on behalf of global environmental stewardship: Earth Day. Nelson died in 2005, but his message in this book is still timely and urgent, delivered with the same eloquence with which he articulated the nation’s environmental ills throughout the decades. He details the planet’s most critical concerns—from species and habitat losses to global climate change and population growth. In outlining strategies for planetary health, Nelson inspires citizens to reassert environmentalism as a national priority. Included in this reprint is a new preface by Gaylord Nelson’s daughter, Tia Nelson.

This is a completely updated and revised version of a monograph published in 2002 by the NASA History Office under the original title Deep Space Chronicle: A Chronology of Deep Space and Planetary Probes, 1958-2000. This new edition not only adds all events in robotic deep space exploration after 2000 and up to the end of 2016, but it also completely corrects and updates all accounts of missions from 1958 to 2000--Provided by publisher.

We are at the cusp of a golden age in space science, as increasingly more entrepreneurs—Elon Musk, Richard Branson, Jeff Bezos—are seduced by the commercial potential of human access to space. But Beyond Earth does not offer another wide-eyed technology fantasy: instead, it is grounded not only in the human capacity for invention and the appeal of adventure, but also in the bureaucratic, political, and scientific realities that present obstacles to space travel—realities that have hampered NASA's efforts ever since the Challenger disaster. In Beyond Earth, the authors offer groundbreaking research and argue persuasively that not Mars, but Titan—a moon of Saturn with a nitrogen atmosphere, a weather cycle, and an inexhaustible supply of cheap energy—offers the most realistic, and thrilling, prospect of life without support from Earth.

Seeking to reenergize Americans' passion for the space program, the value of further exploration of the Moon, and the importance of human beings on the final frontier, Claude A. Piantadosi presents a rich history of American space exploration and its major achievements. He emphasizes the importance of reclaiming national command of our manned program and continuing our unmanned space missions, and he stresses the many adventures that still await us in the unfolding universe. Acknowledging space exploration's practical and financial obstacles, Piantadosi challenges us to revitalize American leadership in space exploration in order to reap its scientific bounty. Piantadosi explains why space exploration, a captivating story of ambition, invention, and discovery, is also increasingly difficult and why space experts always seem to disagree. He argues that the future of the space program requires merging the practicalities of exploration with the constraints of human biology. Space science deals with the unknown, and the margin (and budget) for error is small. Lethal near-vacuum conditions, deadly cosmic radiation, microgravity, vast distances, and highly scattered resources remain immense physical problems. To forge ahead, America needs to develop affordable space transportation and flexible exploration strategies based in sound science. Piantadosi closes with suggestions for accomplishing these goals, combining his healthy skepticism as a scientist with an unshakable belief in space's untapped—and wholly worthwhile—potential.

A drive to recycle cans on Earth Day teaches the children of the Maple Street School Save-the-Planet Club about place value.

The first Earth Day is the most famous little-known event in modern American history. Because we still pay ritual homage to the planet every April 22, everyone knows something about Earth Day. Some people may also know that Earth Day 1970 made the environmental movement a major force in American political life. But no one has told the whole story before. The story of the first Earth Day is inspiring: it had a power, a freshness, and a seriousness of purpose that are difficult to imagine today. Earth Day 1970 created an entire green generation. Thousands of Earth Day organizers and participants decided to devote their lives to the environmental cause. Earth Day 1970 helped to build a lasting eco-infrastructure—lobbying organizations, environmental beats at newspapers, environmental-studies programs, ecology sections in bookstores, community ecology centers. In The Genius of Earth Day, the prizewinning historian Adam Rome offers a compelling account of the rise of the environmental movement. Drawing on his experience as a journalist as well as his expertise as a scholar, he explains why the first Earth Day was so powerful, bringing one of the greatest political events of the twentieth century to life.

On Earth Day 1970 twenty million Americans displayed their commitment to a clean environment. It was called the largest demonstration in human history, and it permanently changed the nation’s political agenda. More than 1 billion people now participate in annual Earth Day activities. The seemingly simple idea—a day set aside to focus on protecting our natural environment—was the brainchild of U.S. Senator Gaylord Nelson of Wisconsin. It accomplished, far beyond his expectations, his lifelong goal of putting the environment onto the nation’s and the world’s political agendas. The life of Nelson, a small-town boy who learned his values and progressive political principles at an early age, is woven through the political history of the twentieth century. Nelson’s story intersects at times with Fighting Bob La Follette, Joe McCarthy, and Bill Proxmire in Wisconsin, and with George McGovern, Lyndon Johnson, Hubert Humphrey, Russell Long, Walter Mondale, John F. Kennedy, and others on the national scene. Winner, Elizabeth A. Steinberg Prize, University of Wisconsin Press

An engaging account of our quest for habitable environments, recounting fascinating recent discoveries and providing insight into future space missions.

Offer stories of ... emerging grassroots environmental stewardship, along with an interdisciplinary framework for understanding and studying it as a growing international phenomenon.--Back cover.

New York Times Bestseller | Wall Street Journal Bestseller | Publishers Weekly Bestseller | Publishers Marketplace 2020 Buzz Book | Amazon Best Book of the Year | Longlisted for the 2022 PEN/E.O. Wilson Literary Science Writing Award “Provocative and thrilling ... Loeb asks us to think big and to expect the unexpected.” —Alan Lightman, New York Times bestselling author of Einstein’s Dreams and Searching for Stars on an Island in Maine Harvard’s top astronomer lays out his controversial theory that our solar system was recently visited by advanced alien technology from a distant star. In late 2017, scientists at a Hawaiian observatory glimpsed an object soaring through our inner solar system, moving so quickly that it could only have come from another star. Avi Loeb, Harvard’s top astronomer, showed it was not an asteroid; it was moving too fast along a strange orbit, and left no trail of gas or debris in its wake. There was only one conceivable explanation: the object was a piece of advanced technology created by a distant alien civilization. In Extraterrestrial, Loeb takes readers inside the thrilling story of the first interstellar visitor to be spotted in our solar system. He outlines his controversial theory and its profound implications: for science, for religion, and for the future of our species and our planet. A mind-bending journey through the furthest reaches of science, space-time, and the human imagination, Extraterrestrial challenges readers to aim for the stars—and to think critically about what’s out there, no matter how strange it seems.