Weird Science: Just because it rang like a bell for hours -
Doesn't mean that the moon is hollow. On Earth the hard crust "rings like a bell" - that's why Seismometers work. So why do some people just want to believe that "For the World is Hollow and I Have Touched the Sky" ? - Phobos also believed to be hollow and the Star Wars Death Stat (with the divot) was based on Mars' Moon Phobos.