CLOSE ENCOUNTERS

Spectacular full-color photographs and computer images will attract readers to this volume of current information about the universe, but Scott (Twins!, p. 117) assumes a lot of prior knowledge on the part of readers, and there is no glossary of terms nor timeline to help with the context. The discussion begins with early telescopes and scientists, including Ptolemy, Copernicus, Galileo, Kepler, and Newton, and proceeds rapidly on to Hubble’s Theory of the Expanding Universe. She explains how images from the Hubble Telescope support earlier theories and have changed scientist’s ideas about the formation of the universe, the planets in our solar system, and distant galaxies. Throughout are thumbnail sketches of contemporary astronomers and their work. Also included: a discussion of the Shoemaker-Levy 9 comet collision with Jupiter in 1995, the birth and death of stars and galaxies, protoplanetary disks in Orion, supernovas, and speculation on black holes and life on other planets. The fussy design detracts from the discussion: Text superimposed on photographs is difficult to read; boxes of colored type are inserted in photographs or into the margins. It’s a challenging title, with appeal mostly for highly motivated science enthusiasts. (index) (Nonfiction. 10-14)