This is extremely speculative, but one way it could be possible to build very sturdy probes is, if we there was a phase of matter whose binding energies were typical of the nuclear forces (or some other, hitherto unknown strong force) rather than the electromagnetic force, like usual matter. Strangelets are one candidate.
This is extremely speculative, but one way it could be possible to build very sturdy probes is, if we there was a phase of matter whose binding energies were typical of the nuclear forces (or some other, hitherto unknown strong force) rather than the electromagnetic force, like usual matter. Strangelets are one candidate.