Levels of floating seaweed mats, known as sargassum, have skyrocketed in the Atlantic Ocean in the past month, with the total ...

A secret map of Ireland's coastline played a crucial role in taking down a powerful alliance of pirates that had based itself in the southwest of Ireland in the 17th century.

Some places are at a higher-than-average risk of direct impacts. Those identified include Texas, Louisiana, North Carolina, ...

A disturbance in the Atlantic Ocean east of Florida has a small chance of developing into a cyclone, according to the National Hurricane Center.