For the first time in history, the human species has the technology to destroy itself. But having developed that power, humans are also able to leave Earth and voyage into the vastness of space. After millions of years of evolution, we've arrived at the point where we can settle other worlds and begin the process of becoming multi-planetary. How did we get here? What does the future hold for us? Divided into four accessible sections, Beyond the Known examines major periods of discovery and rediscovery, from Classical Times, when Phoenicians, Persians and Greeks ventured forth; to The Age of European Exploration, which saw colonies sprout on nearly continent; to The Era of Scientific Inquiry, when researchers developed brand new tools for mapping and traveling farther; to Our Spacefaring Future, which unveils plans currently underway for settling other planets and, eventually, traveling to the stars.

A Mission Manager at SpaceX with a light, engaging voice, Andrew Rader is at the forefront of space exploration. As a gifted historian, Rader, who has won global acclaim for his stunning breadth of knowledge, is singularly positioned to reveal the story of human exploration that is also the story of scientific achievement. Told with an infectious zeal for traveling beyond the known, Beyond the Knownilluminates how very human it is to emerge from the cave and walk toward an infinitely expanding horizon. Rader and Shermer also discuss:

• the human nature to explore: adaptation or spandrel?
• what the Greeks and Romans knew about the world that was lost for centuries
• how dark were the Dark Ages for exploration?
• the economic and religious drivers of early exploration
• the political and practical drivers of 20th century exploration
• Mars direct or to the moon first?
• how to terraform Mars
• how to get people to the moons of the outer planets
• how to get people to the stars
• are we living in a simulation?
• should we be worried about A.I.?

Andrew Rader is a Mission Manager at SpaceX. He holds a Ph.D. in Aerospace Engineering from MIT specializing in long-duration spaceflight. In 2013, he won the Discovery Channel's competitive television series Canada's Greatest Know-It-All. He also co-hosts the weekly podcast Spellbound, which covers topics from science to economics to history and psychology. Beyond the Known is Rader's first book for adults. You can find him at Andrew-Rader.com.

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