Ocean swimmers often wax lyrical about the benefits of a regular dip in the salt water.
Fish that live in the sea have found amazing ways to control the amount of water and salt in their bodies, and stay hydrated.
An international maritime lawyer explains whether Iran broke the law of the sea by detaining the Stena Impero.
Photons stream from the sun and interact with all matter on Earth. Depending on what the light touches, some of the photons will get absorbed or soaked up. And some will bounce back.