RNA and DNA are chemical cousins. But one tiny difference between them (an extra oxygen atom repeated along RNA’s backbone) ...

There have been many important discoveries along the path to what we know today about RNA, or ribonucleic acid—a molecule found in every living cell that helps carry and interpret genetic instructions ...

Scientists may have found a clue to one of the biggest mysteries surrounding the origin of life: how fragile RNA molecules could gather and survive before cells existed. New research shows that RNA is ...