Waubonsee Community College

Worlds unnumbered, the search for extrasolar planets, Donald Goldsmith ; illustrations by Jon Lomberg

eng

Includes bibliographical references (page 217) and index

illustrationsplates

index present

non fiction

Worlds unnumbered

bibliography

36103666

Donald Goldsmith ; illustrations by Jon Lomberg

the search for extrasolar planets

Through four decades of space exploration and ever-better telescopes, astronomers have searched in vain, unable to find even a single planet orbiting any of the myriad of sunlike stars strewn through the Milky Way. All of this changed in October 1995, when astronomers announced the first planet discovered orbiting another sunlike star. Worlds Unnumbered captures the excitement and explains the significance of these new worlds, with an up-to-the-last-planet account that gives the general reader a vivid picture of the new planets - planets that have already amazed astronomers for their colossal size and orbits that seem impossibly close to their respective suns. Many of the new planets are more massive than Jupiter, yet orbit their stars at distances far less than the distance of the sun to its closest planet. With theories of planet formation, the immense difficulties of observing extrasolar planets, and the prospects for future discoveries of Earthlike planets, Worlds Unnumbered's fast-paced narrative provides its readers with key insights into the question that has fascinated humanity for millennia: Are we alone in the cosmos? And if not, how far must we look to find our closest neighbor?

What new worlds are these? -- Could the new planets harbor life? -- Why can't we see planets? -- The formation of planetary systems -- How strange can planets be? -- Seven ways to find planets around other stars -- How many worlds in the Milky Way? -- Can we find life on extrasolar planets? -- Future searches for extrasolar planets