‰ The world’s deepest cave is Lechugilla Cave in Carlsbad, New Mexico. Scientists have mapped 97.8 miles with no end in sight. So far the deepest part is 1,571 feet. ‰ The world’s largest earthquake occurred in the Pacific Ocean about 100 miles off the west coast of Chile on May 22, 1960. It forever changed the shoreline of Chile, caused massive landslides and sent giant tsunamis as far as Hawaii, the Philippines, and Japan. ‰ Scientists at California’s Institute of Earth and Architecture in Victorville believe the first buildings on the moon will be constructed of lunar adobe blocks made from the fusion of lunar soil and solar heat. Traditional earth building techniques such as leaning arches should work well in low gravity fields.