Scientists examining the Moon have for the first time discovered a cave on Earth's only natural satellite.Why it matters: The underground cavity that's at least 130 feet deep could be an ideal location for humans to build a base in which to stay,

Scientists have for the first time discovered a cave on the Moon. At least 100m deep, it could be an ideal place for humans to build a permanent base, they say. It is just one in probably hundreds of caves hidden in an “underground, undiscovered world”, according to the researchers.

Italian-led team reported evidence of a large cave accessible from the deepest known pit on the moon, located at the Sea of Tranquility.