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Diagram of a MMRTG. The multi-mission radioisotope thermoelectric generator (MMRTG) is a type of radioisotope thermoelectric generator (RTG) developed for NASA space missions [1] such as the Mars Science Laboratory (MSL), under the jurisdiction of the United States Department of Energy's Office of Space and Defense Power Systems within the Office of Nuclear Energy.
Diagram of an RTG used on the Cassini probe [1] Diagram of a stack of general-purpose heat source modules as used in RTGs Image of a plutonium RTG pellet glowing red hot.. GPHS-RTG or general-purpose heat source — radioisotope thermoelectric generator, is a specific design of the radioisotope thermoelectric generator (RTG) used on US space missions.
SiGe has been used as a material in RTGs since 1976. Each mission that has used RTG technology involves exploration of far-reaching regions of the solar system. The most recent mission, New Horizons (2005), was originally set for a 3-year exploration, but was extended to 17 years.
The facility is approximately 30 miles (48 km) east of San Francisco, under jurisdiction of the US Nuclear Regulatory Commission's Region IV. [2] The Vallecitos boiling water reactor (VBWR) was the first privately owned and operated nuclear power plant to deliver significant quantities of electricity to a public utility grid. During the period ...
Coast Guard Sectors serve as one-stop-shops for marine safety, security, and environmental protection for major seaports and regions. They bring multi-mission capabilities to life on the front lines of the maritime environment, where Sector Commanders are afforded broad authority. [3]
Hangar One is one of the world's largest freestanding structures, covering 8 acres (32,000 m 2; 3.2 ha) at Moffett Field near Mountain View, California in the San Francisco Bay Area. The massive hangar has long been one of the most recognizable landmarks of California's Silicon Valley .
As of 2020, 38 Fortune 500 companies had headquarters in the San Francisco Bay Area. [1] San Francisco-based businesses are not listed here; the subset of San Francisco-based businesses by type is at the list of companies based in San Francisco. This list includes extant businesses formerly located in the Bay Area, which have moved, or been ...
The borders of the San Francisco Bay Area are not officially delineated, and the unique development patterns influenced by the region's topography, as well as unusual commute patterns caused by the presence of three central cities and employment centers located in various suburban locales, has led to considerable disagreement between local and ...