After 75 years, plutonium is still NASA’s fuel of choice
Excerpt from the March 5, 1966, issue of Science News Letter
AGLOW A pellet of plutonium-238 gives off a warm glow. The radioactive element is used to power spacecraft on long-distance missions, and helps fuel nuclear generators in Europe.
United States Department of Energy
Plutonium’s 25th year — The 25th anniversary of the discovery of plutonium was celebrated in February….