Mysterious chunk was spotted by Nasa spacecraft and may be a vast chunk of metal... opens up the possibility for some serious economic mining here... the Moon here we come...
Got seriously confused by your comment and the thread title...how could an asteroid (which I assumed must be orbiting or close to the moon) also be underground
Essentially the article is that they've found an anomalous chunk of something a couple hundred of kilometres under the southern pole that lines up with a huge crater. Probably a iron asteroid deep in the moons crust. Unless you are planning on seriously strip mining the moon or breaking it up, unlikely ever to be touched by human hand.Sorry, I haven't time to read the article now, but are they saying that this "vast chuck of metal" is somehow unusual?
I have to go out but given that asteroids/meteorites are generally of two types - Stoney or Iron/Nickel - a large meteorite that is mostly Iron doesn't strike me as very strange on its own. That is the basis of all the many science fiction stories containing future 'Belter' miners. Nor does it seem that strange that it could have hit the Moon at some angle that meant it that stayed in one piece, and there is no atmosphere to cause it to burn up as it would on Earth.