Nearly three-fourths of Earth is covered by oceans, making the planet look like a pale blue dot from space. But Japanese researchers have made a compelling case that Earth's oceans were once green, in ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Earth's oceans, known for their deep blue hue, could one day undergo ...

It was Professor CV Raman, who revealed why the ocean looks blue and won the Nobel Prize in Physics for this work. But the oceans on Earth were not always blue. Billions of years before the oceans ...

We've always called Earth the blue planet, but that color might not be permanent. Previous research claims our oceans were once green, and if environmental conditions shift dramatically, a new study ...

More than 500 million years ago, during what is known as the Cambrian period, the seas and oceans on Earth were filled with a ...

VIRGINIA BEACH, Va. — The ocean covers more than 70% of Earth's surface, yet remarkably, we’ve explored only about 5% of it. Despite this mystery, what we do know reveals just how vital — and ...

Research shows Mars' gravitational pull affects Earth's deep-sea currents and climate, causing warming cycles every 2.4 ...

The deep blue sea may not have always been so blue. A new study suggests that the Earth's oceans may have changed color over time and could change again in the future, depending on the chemical makeup ...

Deep beneath the familiar blue of the oceans, Earth may be hiding a far larger sea of potential. New high pressure experiments suggest the planet’s metallic heart could store hydrogen equivalent to ...

The world’s oceans set another alarming record in 2025, and scientists say the impacts are already being felt in the form of stronger storms, heavier rainfall and more extreme weather worldwide. A new ...