Chemical elements · Directory entry
Plutonium
Element 94 · chemical symbol: Pu
These Vrulum profiles mention Plutonium by name. Read each profile for its specific context; a mention alone does not establish composition, performance or use of the pure element.
For periodic-table data and other properties, consult the Royal Society of Chemistry periodic table.
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Nuclear space propulsion and power
Nuclear energy already supplies electricity on some spacecraft through radioisotope generators, and one fission reactor flew in Earth orbit in 1965. Nuclear thermal and nuclear electric propulsion have been tested on the ground or planned, but have not yet flown, and NASA's planned SR-1 Freedom mission targets a launch in late 2028.