The piece raises doubts about launch reliability: “It’s a bummer when a satellite ends up underwater, but it’s an entirely different story if that rocket is packing a few hundred pounds of uranium. And if the uranium caught fire, it could stay airborne and circulate for months, dusting the globe with radioactive ash. Still seem like a good idea?”
Apart from recycling possibilities, which is of course a special concern for fissile material, how might we be able to safely dispose of the waste from this “new generation” of nuclear power plants? I’m talking here about the 4% or so that can’t be productively repurposed.
For a long time I’ve thought that an extraterrestrial solution might be ideal, given the political problems surrounding terrestrial storage (as in the case of Yucca Mountain), although in practice finding the technology to safely accomplish some kind of outer space disposal is more difficult. Space elevators might work. Storing material on the moon afterward might be an option, although in lieu of a lunar solution perhaps a solar solution might work. Although volcanoes aren’t hot enough to break down radioactive material, the sun would be.
So maybe we could develop and apply the technology to shoot nuclear waste into space on a trajectory that would draw it into the sun, or failing that, into a path that would not run back into us on the way around or interfere with future intra-system travel. Why not use “a cannon for shooting things into space” to dispose of nuclear waste?
How the Space Cannon Works, John MacNeill
Any disposal site or method, especially one that included the transport of material into space, would need to be virtually immune from the kind of attack that destroys The Machine in the film Contact.