The total amount of sargassum, the green and yellow-ish seaweed that washes up on South Florida beaches in spring and summer, is at record-breaking levels, said researchers in a monthly report. The ...

Earth's oceans may seem like an expanse of the same water to us, but try telling that to a sea turtle or a whale shark. To ...

New high-resolution satellite map reveals nearly 100,000 unknown ocean mountains, or seamounts, boosting climate and maritime ...