This electronic book on CD-ROM presents the complete story of NASA's work in the exciting field of astrobiology and related research, including SETI and the search for other planetary systems. Workshops at the Ames Research Center are highlighted, along with extensive coverage of major ongoing ...
Since the dawn of time, people have been intrigued with the stars. See for yourself what's so fascinating with a homemade telescope - there are six different sizes and styles: from a small hand-held device to a large mounted one, made with readily available, inexpensive materials that are better ...
- Optional 3 to 5 Year Extended Repair/Replacement Warranties. Root 8Cyclone technology. Telescope reach. Instant stair cleaning. Wide channel for large pieces. Easy to carry ergonomic design. Hygienic and quick to empty. No loss of suction • No extra costs, no bags or filters to buy. Approved for ...
Space Views from the Hubble Telescope Mini Wall Calendar: The cosmos compressed! This mini calendar leads you through the year with another dozen astounding Hubble photographs of space. As with the full-size calendar, each image is accompanied by a c
Series 5000 Super Wide Angle eyepieces boast a 68° apparent field-of-view and image resolution that is razor sharp from edge-to-edge. Because of their innovative six-element design, each eyepiece presents objects rich in detail and contrast with virtually no chromatic aberration.Features:16mm focal ...
Series 5000 Super Wide Angle eyepieces boast a 68° apparent field-of-view and image resolution that is razor sharp from edge-to-edge. Because of their innovative six-element design, each eyepiece presents objects rich in detail and contrast with virtually no chromatic aberration.Features:20mm focal ...