A new look at ancient rocks suggests that a self-sustaining nutrient cycle in ancient oceans helped keep Earth's atmosphere rich in oxygen for millions of years.

Introduction—To live is to maintain a flow of reactionsLast time, we introduced proteins, carbohydrates, lipids, and nucleic ...

How sugar from outer space became one of the backbones of life on Earth ...

Is there life elsewhere, or is Earth unique in the universe? This is one of humanity's great unanswered questions. One way to approach this mystery is to investigate how life began here on Earth. Our ...

Scientists want to create cells from scratch, to unveil life’s origins or provide specialized functions. Are they close?

"I probably wouldn't call it 'changing our brain chemistry,'" Morton says. "That phrase gets used as a catch-all for almost ...

This article contains promotions. You handle daily experiments and process designs, reliably achieving the strict ...

By simulating a billion years of Earth’s history, researchers have identified a possible window for life’s earliest chemistry ...

Enceladus is hardly an inviting place. It sits 1.5 billion kilometers from the Sun, covered by a thick frozen exterior. Yet ...

RNA and DNA are chemical cousins. But one tiny difference between them (an extra oxygen atom repeated along RNA’s backbone) can radically change how the molecules behave. Researchers have now found ...

A federal energy lab made a 30-foot wind turbine blade from bio-derived sugars and dissolved it clean in 6 hours, recovering ...

Plus, about Malik becoming scout, Jude's past, and more.