NASA targets Marius Hill Pit on the Moon for caves

NASA has launched a mission to explore the Marius Hill Pit, a potential skylight into a vast lava tube, using advanced instruments on a lunar rover.

NASA's next lunar adventure is all about the Marius Hill Pit, a huge hole on the Moon that might be an entrance to underground caves. At up to 150 feet deep and up to 300 feet wide, this pit could reveal secrets about ancient volcanic activity and ma... [461 chars]