Venus Iii

The final orbit of Venus by the Magellan spacecraft in October 1994 brought to a close an exciting period of Venus reconnaissance and exploration. The scientific studies resulting from data collected by the Magellan, Galileo, and Pioneer missions are unprecedented in their detail for any planet except Earth. Venus II re-evaluates initial assessments of Venus in light of these and other spacecraft missions and ground-based observations conducted over the past 30 years. More than a hundred contributors summarize our current knowledge of the planet, consider points of disagreement in interpretation, and identify priorities for future research. Topics addressed include geology, surface processes, volcanism, tectonism, impact cratering, geodynamics, upper and lower atmospheres, and solar wind environment. The diversity of the coverage reflects the interdisciplinary nature of Venus science and the breadth of knowledge that has contributed to it. A CD-ROM developed by the Jet Propulsion Laboratory accompanies the book and incorporates text, graphics, video, software, and various digital products from selected contributors to the text. A multimedia interface allows users to navigate the text and the extensive databases included on the disk. Venus II is the most authoritative single volume available on the second planet. Its contents will not only help shape the goals of future Venus missions but will also enhance our understanding of current Mars explorations.

Vistas in Astronomy, Volume 1: Co-operation and Organization, History and Philosophy, Dynamics, Theoretical Astrophysics, Instruments, Radio Astronomy, Solar Physics brings together the ideas that form the structural units of what is known about astronomy. This book is organized into seven sections encompassing 93 chapters. Section I provides a summary of the significant contributions of international cooperation and various astronomy-related organizations in the advancement of astronomy. Section II highlights the historical developments in astronomy, from the early studies of the Egyptians to the formulation of philosophical concepts of cosmology. Sections III and IV describes the dynamic and theoretical aspects of astrophysics. These sections consider research studies on stellar dynamics, atmospheres, and magnetic fields, as well as the formation of condensation in a gaseous nebula. Part V is devoted o the developments in telescope optics and mirrors, spectrographs, electronic calculating machines, and photometers, while Section VI examines the field of radio astronomy. Part VII looks into solar physics related studies, including the structure and movements of sunspots, eclipse observation, and spectroscopic investigations of the solar corona. This book is of great value to astronomers, astrophysicists, solar physicists, and researchers in the allied fields.

This 1929 five-volume edition of Ovid's unfinished Fasti offers text, English translation and a detailed commentary, with illustrations.