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

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 ...

This is paying dividends. The new map covers all the Southern Ocean floor poleward of 50 degrees South. If you divide its 48 million sq km into 500m grid squares, 23% of these cells now have at ...