According to the RNA world hypothesis, life began when RNA molecules evolved the ability to make more copies of themselves. Now we have discovered an RNA molecule that is almost capable of this – it ...

The discovery of RNAi dates back to the 1990s when researchers observed unexpected gene silencing in plants and fungi. In 1998, Andrew Fire and Craig Mello published a groundbreaking study ...

There are plenty of unanswered questions about the origin of life on Earth. But the research community has largely reached consensus that one of the key steps was the emergence of an RNA molecule that ...