The ocean can be many colors, but for the most part it's deep blue. But why? And what's up with green or brown or red water?

On a bright, clear day, the sky stretches above us in a brilliant shade of blue. But have you ever wondered why? The answer lies in a fascinating phenomenon known as Rayleigh scattering ...

blue sky of Florida's Space Coast. About eight minutes into flight, following stage separation and deceleration burns, the Falcon 9 booster returned to Earth, downrange in the Atlantic Ocean.

It’s why the ocean is called “the beating blue heart of the planet”. Yet our oceans are under unsustainable pressure from pollution, climate change and overfishing. Through our partnership with Sky ...