Gregory's Server
@graydon @Junco @cstross Apollo 13's RTG was never recovered - it was deliberately dropped in 10 km of water. The RTG from the Nimbus B launch failure in 1968 was recovered from a few hundred meters down - https://en.wikipedia.org/wiki/Nimbus_B .
The redesign was after the Transit 5BN-3 launch failure in 1964, where the older RTG disintegrated on re-entry.
@michael_w_busch @Junco @cstross Thank you!
I do find it kinda silly to be paralytically worried about 4 kilos of Pu in the atmosphere given the amount scattered about by weapons testing.