Next year, an Australian company plans to start drilling deep underwater off the coast of Papua New Guinea to extract deposits rich with copper, gold, silver and zinc. The firm says the operation is much less messy than mining on land, but some scientists worry about the impact on deep-sea...

The GOP candidates for president have seized on high gas prices as a line of attack against President Obama, largely saying the answer is more domestic oil drilling. But one of those candidates, former Massachusetts Gov. Mitt Romney, used to have a position at least somewhat at odds with that...

The film director James Cameron has just completed a dive to Challenger Deep, the deepest point on Earth at nearly 36,000 feet under the sea. His manned descent is the first in 52 years, since the oceanographers Don Walsh and Jacques Piccard explored the Mariana Trench in the bathyscaphe ...