The ocean is a vast and mysterious place. It covers more than 70 percent of the Earth’s surface, and yet, we know very little about it. Every year, scientists make new and startling discoveries about the ocean. Here are just a few of the most interesting ones.

1. Giant Underwater Rivers

In 2016, researchers discovered what they called “underwater rivers” in the Mediterranean Sea. These rivers are about 500 meters wide and flow up to 10 kilometers per hour. They are made of dense, salty water that is colder and denser than the surrounding water.

2. Giant Underwater Lakes

In 2017, scientists discovered a giant underwater lake in the Gulf of Mexico. The lake is about the size of Lake Superior and is filled with a mix of fresh and saltwater. It is believed to be about 2,000 years old and is home to a variety of marine life.

3. Underwater Volcanoes

In 2018, researchers discovered the world’s deepest known underwater volcano. This volcano is located in the South Pacific Ocean and is about 6,000 meters below the surface. It is estimated to be about 50 million years old and is still active.

4. Underwater Canyons

In 2019, scientists discovered a massive underwater canyon in the Atlantic Ocean. The canyon is about 5,000 meters deep and is the deepest known underwater canyon in the world. It is believed to be about 200 million years old and is home to a variety of marine life.

5. Ancient Underwater Forests

In 2020, researchers discovered an ancient underwater forest off the coast of Australia. The forest is estimated to be about 8,000 years old and is made up of cypress and redwood trees. The trees are still standing and are home to a variety of marine life.

These are just a few of the many startling discoveries about the ocean that scientists have made in recent years. As technology continues to improve, we can expect to learn even more about the mysterious depths of the ocean.