To begin with: yeeting anything into space is really, really expensive, and if what you’re yeeting is super highly toxic (like radioactive waste) you don’t want to have even the slightest chance that something could go wrong and poison the entire planet (some of it really is that dangerous).
Could we throw it in a volcano? Maybe, but again: what would happen to it next? Would it vaporize and contaminate the atmosphere? This is way too risky.
To your third question, why can’t we squeeze out anymore radioactive juice? And the answer here is that we don’t know how, with these particular radioactive nope-fruits, to get more juice out of them – yet.
“Yet” is the key word: we think we might be better at this in the future, so a good solution would be to seal it up safely and put it somewhere that it can’t contaminate the atmosphere, or the water supply, but that we can still get back to it later when we have a safe way of using it or making it safer.
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