Imagine early humans meticulously crafting stone tools for nearly 300,000 years, all while contending with recurring ...

The very first humans millions of years ago may have been inventors, according to a discovery in northwest Kenya. Researchers ...

They turned natural materials into tools, medicines, and systems that quietly underpin much of today's technology and culture ...

Ancient rocks reveal a potassium-40 deficit, the first physical evidence of the proto-Earth and insights into early planetary ...

Scientists have long wondered why Earth's overall makeup doesn't fully match the mix of materials found in ancient meteorites ...