This CD-ROM set has over 11,000 pages reproduced using Adobe Acrobat PDF software - allowing direct viewing on Windows and Macintosh systems, and Reader software is included. Advanced search and indexing features are built into our reproduction, providing a complete full-text index. This enables the user to search all the files on the disk at one time for words or phrases using just one search command! The Acrobat cataloging technology adds enormous value and uncommon functionality to this impressive collection of government documents and material. There is no other reference that is as fast, convenient, comprehensive, and portable!
Mars Global Surveyor became the first successful mission to the red planet in two decades when it launched November 7, 1996, and entered orbit on September 12, 1997. After a year and a half trimming its orbit from a looping ellipse to a circular track around the planet, the spacecraft began its prime mapping mission in March 1999. It has observed the planet from a low-altitude, nearly polar orbit over the course of one complete Martian year, the equivalent of nearly two Earth years. Mars Global Surveyor recently completed its primary mission on January 31, 2001, and is now in an extended mission phase. The mission has studied the entire Martian surface, atmosphere, and interior, and has returned more data about the red planet than all other Mars missions combined. Among key science findings so far, Global Surveyor has taken pictures of gullies and debris flow features that suggest there may be current sources of liquid water, similar to an aquifer, at or near the surface of the planet. Magnetometer readings show that the planet's magnetic field is not globally generated in the planet's core, but is localized in particular areas of the crust. New temperature data and closeup images of the Martian moon Phobos show its surface is composed of powdery material at least 1 meter (3 feet) thick, caused by millions of years of meteoroid impacts. Data from the spacecraft's laser altimeter have given scientists their first 3-D views of Mars' north polar ice cap.
Our CD-ROMs are privately-compiled collections of official public domain U.S. government files and documents - they are not produced by the federal government. They are designed to provide a convenient user-friendly reference work, utilizing the benefits of the Acrobat format to uniformly present thousands of pages that can be rapidly reviewed, searched, or printed without untold hours of tedious searching and downloading. Vast archives of important public domain government information that might otherwise remain inaccessible are available for instant review no matter where you are. This book-on-a-disc set makes a great reference work and educational tool.
