[RandallFlagg]

We’ve been launching fissile material into space for decades. It powers long range craft like Voyagers 1 and 2.

And with the exception of the satellite that crashed after orbiting Venus (with radiation leaking that caused the zombie outbreaks of the ‘60s and ‘70s), no accidents have yet to occur.

[wastedyears]

with radiation leaking that caused the zombie outbreaks of the ‘60s and ‘70s

Oh, you mean hippies?