Fuel for deep space exploration running low - Dept. of Energy announced will restart program to make plutonium-238, MSNBC via AP
"NASA is running out of nuclear fuel needed for its deep space exploration.
The end of the Cold War's nuclear weapons buildup means that the U.S. space agency does not have enough plutonium for future faraway space probes except for a few missions already scheduled according to a new study released Thursday by the National Academy of Sciences."




