The ocean is blue because water absorbs colors in the red part of the light spectrum. Like a filter, this leaves behind colors in the blue part of the light spectrum for us to see. When sunlight hits ...

When we look at Earth from space today, we see a pale blue dot—a planet dominated by vast oceans that shimmer under the sunlight. But what if our oceans weren't always blue? According to recent ...

Earth's oceans are getting greener, scientists have found using satellite imagery. More than 56% of the Earth's oceans have changed color over the past 20 years. It's not clear exactly what's driving ...

The oceans of today look different from the oceans of 20 years ago, researchers found in a new study. Around 56% of the world's oceans have changed color, with the blue waters becoming greener over ...

Earth's oceans, known for their deep blue hue, could one day undergo color shifts, say scientists. A report based on a study published in Nature suggests that our oceans have not always been blue, and ...

The color of the ocean has changed significantly over the last 20 years and human-caused climate change is likely responsible, according to a new study. More than 56% of the world’s oceans have ...