As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was ...

Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their ...

The new plot twist is that in order to keep enough nitrogen and phosphorus near its surface, a planet has to start out with ...

A UT San Antonio-led international research team has identified chitin, the primary organic component of modern crab shells ...

His poetry reckoned with the immensities of reality, time, and grief, confronting a world upended by new truths about the ...

Life’s story may stretch further back than scientists once thought. Some genes found in nearly every organism today were already duplicated before all life shared a common ancestor. By tracking these ...

Penn State researchers think a key ingredient for life may have formed in deep freeze, not in a warm asteroid puddle. A space ...

Bronx teacher Carolina Castro-Skehan discusses her journey from cosmetics to the classroom, her work on state Regents exams, ...

Oxygen is everywhere on Earth today. But that hasn’t always been the case. Scientists think oxygen only became a lasting part ...

An MIT study suggests some early life forms may have evolved the ability to use oxygen hundreds of millions of years before ...

Tiny grains of dust from asteroid Bennu are reshaping how scientists think life’s ingredients formed in space.