timothy from the yeah-but-now-it's-non-planetary dept.
Celarent Darii writes "In what looks like good news for the American Space program, NASA has restarted production of plutonium. According to the article, after the closure of Savannah Rivers reactor NASA purchased plutonium from Russia, but since 2010 this was no longer possible. The native production of plutonium is a step forward for the space program to achieve the energy density for long term space exploration."
We will have solar energy as soon as the utility companies solve one technical
problem -- how to run a sunbeam through a meter.