Earth's oceans could one day turn purple. Nearly three fourths of Earth is covered by oceans, making the planet look like a ...

What are some of the largest extraterrestrial impacts to effect Earth? Learn what we’ve seen in history, and what is ...

Nearly three-fourths of Earth is covered by oceans, making the planet look like a pale blue dot from space. But Japanese ...

Green oceans on early Earth, shaped by iron, pushed microbes to evolve light-absorbing tools that worked in green light.

But while lifeless during that time, the planet was already covered by vast oceans dotted with hydrothermal vent systems that ...

Historically, there have been four oceans: the Atlantic, Pacific, Indian, and Arctic. On Feb. 9, U.S. Secretary of the ...

Our planet’s first known mass extinction happened about 440 million years ago. Species diversity on Earth had been increasing ...

Let’s dive deep into the ocean and explore five fascinating ocean creatures that have outlived the dinosaurs, continuing to thrive in Earth’s ever-changing aquatic realm. By John M. Good, Gilbert F.

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

The changes in ocean chemistry were gradual. The Archaean period lasted 1.5 billion years. This is more than half of Earth's history. By comparison, the entire history of the rise and evolution of ...

Moon is slowly moving away from Earth at a rate of 3.8 centimetres per year. This gradual drift affects Earth’s rotation and ...