front cover of Discovering Mars
Discovering Mars
A History of Observation and Exploration of the Red Planet
William Sheehan and Jim Bell
University of Arizona Press, 2021
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.
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The Halle Orphanage as Scientific Community
Observation, Eclecticism, and Pietism in the Early Enlightenment
Kelly Joan Whitmer
University of Chicago Press, 2015
Founded around 1700 by a group of German Lutherans known as Pietists, the Halle Orphanage became the institutional headquarters of a universal seminar that still stands largely intact today.  It was the base of an educational, charitable, and scientific community and consisted of an elite school for the sons of noblemen; schools for the sons of artisans, soldiers, and preachers; a hospital; an apothecary; a bookshop; a botanical garden; and a cabinet of curiosity containing architectural models, naturalia, and scientific instruments. Yet, its reputation as a Pietist enclave inhabited largely by young people has prevented the organization from being taken seriously as a kind of scientific academy—even though, Kelly Joan Whitmer shows, this is precisely what it was. 

The Halle Orphanage as Scientific Community calls into question a long-standing tendency to view German Pietists as anti-science and anti-Enlightenment, arguing that these tendencies have drawn attention away from what was actually going on inside the orphanage. Whitmer shows how the orphanage’s identity as a scientific community hinged on its promotion of philosophical eclecticism as a tool for assimilating perspectives and observations and working to perfect one’s abilities to observe methodically. Because of the link between eclecticism and observation, Whitmer reveals, those teaching and training in Halle’s Orphanage contributed to the transformation of scientific observation and its related activities in this period.
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Observation and Ecology
Broadening the Scope of Science to Understand a Complex World
Rafe Sagarin and Aníbal Pauchard
Island Press, 2012

The need to understand and address large-scale environmental problems that are difficult to study in controlled environments—issues ranging from climate change to overfishing to invasive species—is driving the field of ecology in new and important directions. Observation and Ecology documents that transformation, exploring how scientists and researchers are expanding their methodological toolbox to incorporate an array of new and reexamined observational approaches—from traditional ecological knowledge to animal-borne sensors to genomic and remote-sensing technologies—to track, study, and understand current environmental problems and their implications.
 
The authors paint a clear picture of what observational approaches to ecology are and where they fit in the context of ecological science. They consider the full range of observational abilities we have available to us and explore the challenges and practical difficulties of using a primarily observational approach to achieve scientific understanding. They also show how observations can be a bridge from ecological science to education, environmental policy, and resource management. 

Observations in ecology can play a key role in understanding our changing planet and the consequences of human activities on ecological processes. This book will serve as an important resource for future scientists and conservation leaders who are seeking a more holistic and applicable approach to ecological science.

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Observation and Experiment
An Introduction to Causal Inference
Paul R. Rosenbaum
Harvard University Press, 2017

A daily glass of wine prolongs life—yet alcohol can cause life-threatening cancer. Some say raising the minimum wage will decrease inequality while others say it increases unemployment. Scientists once confidently claimed that hormone replacement therapy reduced the risk of heart disease but now they equally confidently claim it raises that risk. What should we make of this endless barrage of conflicting claims?

Observation and Experiment is an introduction to causal inference by one of the field’s leading scholars. An award-winning professor at Wharton, Paul Rosenbaum explains key concepts and methods through lively examples that make abstract principles accessible. He draws his examples from clinical medicine, economics, public health, epidemiology, clinical psychology, and psychiatry to explain how randomized control trials are conceived and designed, how they differ from observational studies, and what techniques are available to mitigate their bias.

“Carefully and precisely written…reflecting superb statistical understanding, all communicated with the skill of a master teacher.”
—Stephen M. Stigler, author of The Seven Pillars of Statistical Wisdom

“An excellent introduction…Well-written and thoughtful…from one of causal inference’s noted experts.”
Journal of the American Statistical Association

“Rosenbaum is a gifted expositor…an outstanding introduction to the topic for anyone who is interested in understanding the basic ideas and approaches to causal inference.”
Psychometrika

“A very valuable contribution…Highly recommended.”
International Statistical Review

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The Planet Mars
A History of Observation and Discovery
William Sheehan
University of Arizona Press, 1996
Twenty years after the Viking missions of the ’70s, we are finally going back to Mars. No fewer than ten missions are planned for the period between 1996 and 2003, and it is likely that human explorers will follow soon after--perhaps by the middle of the twenty-first century. When they do, they will owe much to the Mars of romance, to the early pioneers whose discoveries and disappointments are brought to life in The Planet Mars: A History of Observation and Discovery.

In this timely and vividly written account, William Sheehan traces human fascination with Mars back to the naked-eye observers of the planet. He recalls the early telescopic observers who first made out enigmatic markings and polar caps on its surface. Through lively historical anecdotes, he describes in detail the debate over the so-called canals of Mars, which encouraged speculation that the planet might be inhabited. Finally, Sheehan describes more recent theories about the planet, leading up to the present, when unmanned spacecraft have enabled us to make giant strides in exploration.

Well documented and sparked with human interest, this book will be a useful companion and guide in interpreting the barrage of headlines about Mars that is sure to come over the next few years. Amateurs will appreciate the contributions that have been made to Martian studies by people like themselves, and professionals will find much original material that has never before been published. The American Mars Global Surveyor is scheduled for launch in November 1996, and soon after the American Mars Pathfinder will make its way toward the red planet. A Russian mission consisting of an orbiter and two landers will be launched in October 1997. These space travelers will write a whole new chapter in the dramatic story of Mars, a planet whose exploration has only just begun. Astronomy Book Club main selection and selections of Book-of-the-Month Club and Quality Paperback Book Club.
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