Giant caves up to 150 meters deep beneath Australia's Nullarbor Plain revealed

Beneath the featureless expanse of Australia's Nullarbor Plain, a hidden world has come to light — vast cave systems plunging 150 meters into ancient limestone, finally explaining the enigmatic trenches that have long puzzled those who study this remote terrain. Scientists mapping these subterranean voids have found that what appears on the surface as collapse and scar is merely the shadow cast upward by something far grander below. The discovery reminds us that the earth's most legible mysteries are often written not on its face, but in the depths we have yet to visit — and that understanding