A newly-deployed satellite has created the most-detailed map yet of the ocean floor, finding hundreds of hills and underwater volcanoes that were previously missed.

And if you want to understand precisely how sea-levels will rise in different parts of the world, good ocean-floor maps are a must. Much of the data that's been imported into the GEBCO grid ...

Marine Traffic map lets anyone trace a vessel that has a position ‘transponder’ similar to those used by aircraft Transponder broadcasts the ships’ position, name, course and speed allowing ...

The Great Pacific Garbage Patch is a gyre of plastic debris in the north-central Pacific Ocean. It’s the largest accumulation of plastic in the world. Just how big is it? Using the map below, click ...