The title [of Exploring the Earth and the Cosmos], though accurate, does not catch the flavor of this latest Asimov—which reveals his fascination with limits and man's "restless desire" to push beyond. As preamble, Asimov reviews human physical limitations: horizons defined by human eyes, legs, and so on. Then, in true Baconian scientific spirit, he celebrates the experiments, methods, and measurements that have extended human horizons in space, time, matter, and energy. The result is a bird's-eye view of history and invention, science and industry…. He's said many of these things before, of course; but they are condensed and tied together here in highly satisfactory fashion, with the earthy wit (black holes as "cosmic subways") and the usual scattering of Guinness record-type tidbits. Vintage Asimov that will please fans—and also a lively introduction to science for teens or pre-teens. (pp. 563-64)