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SP-100 nuclear power system. SP-100 (Space reactor Prototype [1]) was a U.S. research program for nuclear fission reactors usable as small fission power systems for spacecraft. [2] It was started in 1983 by NASA, the US Department of Energy and other agencies. [3] A reactor was developed with heat pipes transporting the heat to thermoelectric ...
A smaller test reactor called SAFE-30 was first built. [6] The working fluid used in the reactor was a helium–xenon gas mixture. [7] The project was funded with discretionary money in the lab's budget and done mostly outside the researchers' normal work. [8] As of 2019, this project appears to have been superseded by Nasa's Kilopower. [9]
In 2019, the start-up was once again pushed back, making it unlikely it could be started before the end of 2022. In July 2020, the French Court of Audit estimated the cost will reach €19.1 billion, more than 5 times the original cost estimate. The initial low cost forecasts for these megaprojects exhibited "optimism bias". [2]
American RTGs in the 1970s supplied power in the 100 W range. [33] For the RORSAT military radar satellites (1967–1988), fission reactors, especially the BES-5, were developed to supply an average of 2 kW to the radar. At altitudes averaging 255.3 km, they would have rapidly decayed if they had used a large solar array instead.
OPEN100 is a project that claims to provide open-source blueprints to build nuclear power plants.Its stated goal is to reduce the cost and duration of nuclear reactor construction and increase the nuclear power supply 100-fold by 2040 to aid in the decarbonization of the global economy.
Called Hermes, Kairos Power's low-power demonstration reactor will show the company's capability to deliver low-cost nuclear heat and is scheduled to be operational in 2026, officials said.
The company behind a search for pilot Amelia Earhart's possible crash site in the Pacific said a sonar image believed to resemble her plane turned out to be the sea floor's normal shapes.
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