Despite satellites and submersibles, most of the ocean is still a question mark. Scientists have theories, but plenty of things under the sea just don’t add up.

The Earth's mighty oceans are even more mysterious than outer space. The majority of the planet's surface is covered by water, but 95% of our oceans remain unexplored. We know more about Mars than we ...

In 2013, a mysterious epidemic swept across the Pacific Coast of North America, rapidly turning billions of sea stars from Mexico to Alaska into goo. Its name, sea star wasting disease (SSWD), ...