Huge Underground "Ocean" Found Beneath Asia

While browsing through some of the articles that I have subscribed to, I found one which was very interesting. According to National Geographic, scientists have reported the discovery of a huge giant blob of water the size of Antartica beneath Asia. However, this water is not all liquid. It is composed of moisture-containing rocks 400 to 800 miles beneath the surface. The vast size of this "ocean" is large enough to produce a lage amount of water. The link to the aricle is http://news.nationalgeographic.com/news/2007/02/070227-ocean-asia.html?source=rss