Oxygen, essential to our existence, took nearly a billion years to appear in significant quantities on Earth, despite the ...

"One Hand Clapping" draws from neuroscience, evolution, philosophy and a rich tapestry of cultural references to examine how ...

Two mysterious blobs deep inside Earth may hold clues about the origin of life on our planet, new research finds. Deep ...

Two enormous structures that sit at the border between the Earth's mantle and its core have puzzled scientists for decades.

While much of the history of life on Earth is written, the opening chapters are murky at best. Beyond a hazy boundary of ...

The “Boring Billion” is an informal description of a billion-year-period of Earth history (1.8 billion to 800 million years ago) where tectonics, climate, and biological evolution remained ...

Life made the modern Earth as much as the Earth made life, a new book by a philosopher of consciousness argues. That dynamic leaves humans with a unique set of moral questions, Peter Godfrey-Smith of ...

They’re the building rocks of life. Analysis of debris from the nearly 5 billion-year-old asteroid Bennu suggests the ingredients to life on Earth were present in the early days of our solar system, ...

Scientists have recovered the first long section of rocks that originated in the Earth's mantle, the layer below the crust and the planet's largest component. The rocks will help unravel the mantle's ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A massive space ...

Two of the most intriguing questions in science are: How did life on Earth begin? and Is there life elsewhere in the universe? Given the enormous interest in these questions, you might expect that the ...

"These events can either be a catastrophe or the best thing that has happened to our planet, depending on what point of view you are taking." When you purchase through links on our site, we may earn ...