Life on Earth may have started with a molecule that still runs our cells today. As researchers probe ribonucleic acid in the ...

More than four billion years ago, Earth was a very different place. Pools of water froze and thawed in cycles, minerals shaped reactions, and molecules bumped into each other by chance. Out of this ...

Scientists may have discovered a reaction that provides the “missing link” to help explain how early life formed on Earth about 4 billion years ago. All living things contain ribonucleic acid, ...