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Extraterrestrial Languages
If we send a message into space, will extraterrestrial beings receive it? Will they understand?The endlessly fascinating question of whether we are alone in the universe has always …
Finding our Place in the Universe
How a team of researchers, led by the author, discovered our home galaxy's location in the universe.You are here: on Earth, which is part of the solar system, which is in the Milky …
Old Wheelways
How American bicyclists shaped the landscape and left traces of their journeys for us in writing, illustrations, and photographs. In the later part of the nineteenth century, …
The Lost Planets
A fascinating account of the pioneering astronomer who claimed (erroneously) to have discovered a planet outside the solar system.There are innumerable planets revolving around …