Explore the strange and fascinating geography of the Indian Ocean, from unusual island chains and deep ocean trenches to ...

It's been 20 years since the Indian Ocean tsunami, which spanned 14 countries and left more than 230,000 dead. National Geographic's new series, "Tsunami: Race Against Time," provides a 360-degree ...

IRIS Dena, the Iranian warship torpedoed by the United States in the Indian Ocean, has raised questions about who controls the vast expanse of waters and to what extent.

A lot has been happening in the Indian Ocean in recent years, with new hotels, wildlife breaks, private island escapes and tours offering the inside scoop on local culture. From Tanzania to Sri Lanka, ...