Earth may have underground 'ocean' three times that on surface

Here&#x27;s the discussion: <a href="https://news.ycombinator.com/item?id=7885641" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=7885641</a><p>Here are other submissions:<p><a href="https://news.ycombinator.com/item?id=7887576" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=7887576</a><p><a href="https://news.ycombinator.com/item?id=7888125" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=7888125</a><p><a href="https://news.ycombinator.com/item?id=7888473" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=7888473</a><p><a href="https://news.ycombinator.com/item?id=7891348" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=7891348</a>