[wtcactus]

No. Otherwise how would you power them? We could use nuclear power methods, like we did in the Voyagers for instance. But the press release doesn’t mention that and, for a constellation of satellites around the earth, it would be a terrible idea.

[zvqcMMV6Zcr]

NASA doesn't have enough radioactive material for its current needs, RTG is used only for missions far from Sun (and Earth).