Add Yahoo as a preferred source to see more of our stories on Google. A massive green swirl of algae in the sea. quick facts Where is it? The Gulf of Finland in the Baltic Sea. What's in the photo? A ...

For months, a gargantuan iceberg has been slowly spinning in one spot in the Southern Ocean — and it could continue to stay trapped in this vortex for quite some time, experts say. As the world’s ...

The biggest iceberg in the world has become trapped, traveling in a gigantic circle, and may be stuck there for years. The iceberg, named A23a, is about 1,640 square miles in area, slightly larger ...

The world's largest iceberg, A23a, is stuck again. For more than 30 years, the giant frozen block — equivalent to the size of Rhode Island — was grounded on the sea floor in Antarctic coastal waters.

Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way that will send much of the United States a devastating dose of winter weather later this week ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. For months, a ...

In 2018, satellite images captured a stunning spiral of cyanobacteria blooming in the Baltic Sea. The swirling mass of microbes helped to create a massive "dead zone" the size of West Virginia that ...