Robots could descend into old mines to prevent toxic spills

DENVER (AP) -- Crumbling mine tunnels awash with polluted waters perforate the Colorado mountains, and scientists may one day send robots creeping through the pitch-black passages to study the mysterious currents that sometimes burst to the surface with devastating effects....

from AP Top Science News at 2:41 a.m. EST http://ift.tt/2ErApKh

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