Scientists discovered the world's largest and deepest whale graveyard, preserving millions of years of ocean history.

This video features Koneswaram Temple, Trincomalee, Sri Lanka, a historic Hindu temple situated on a rocky promontory overlooking the Indian Ocean. Surrounded by sandy beaches, turquoise waters, and rugged coastal rocks,

Somewhere south of India, the ocean surface dips by roughly 100 meters below the expected shape of the Earth, a gravitational depression so large it stretches across millions of square kilometers yet so subtle that only satellite measurements can detect it.

The military base at Diego Garcia allows the US Navy to maintain an active presence in the Indian Ocean.