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 ...

For a century and a half, ACS has advanced chemistry through scientific discovery, education, and innovation. Equally ...

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

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 ...

Estimates for when life emerged on Earth range from ca. 3.8 Ga (Eoarchean) to the Hadean eon (≥4.0-4.5 Ga). Here, we conclude that a proposed early stage of life – the RNA World – appeared at ca. 4.33 ...

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

On Monday night, the Minnesota Timberwolves began their preseason journey with a contest against the Milwaukee Bucks on the road. This was LaMelo Ball’s first time to suit up for the Timberwolves in ...

I have completed a master's degree in a science-related graduate school and work as a researcher at a manufacturing company.

A 3-D thermal model identifies a ~ 4.33 Ga temporal “sweet spot” for life’s origin, when decreased bombardment enabled mild hydrothermal niches to support RNA World chemistry and stable biomolecule ...

The Illuminate Conference, held at Houston’s Health Museum, brought together independent podcasters and content creators for ...

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