 The scientists have confirmed a cave on the moon, not far from where Neil Armstrong and Buzz Aldrin landed 55 years ago, and suspect there are hundreds more that could house future astronauts. An Italian-led team reported Monday that there's evidence for a sizable cave accessible from the deepest known pit on the moon, located at the Sea of Tranquility, just 250 miles from Apollo 11's landing site. The pit was created by the collapse of a lava tube. The findings suggest there could be hundreds of pits on the moon