This diagram depicts the chemical structure of pyrimidine, a six-membered aromatic ring with two nitrogen atoms at positions 1 and 3 (highlighted in blue). The remaining positions are occupied by ...

A group of interdisciplinary Boston University researchers worked together to investigate the promising technology of self-amplifying RNA as a way to deliver lifesaving drugs and create more effective ...

Oceans churned with lava. Air filled thick with smoke. Asteroids stormed down incessantly. Life during the Hadean Eon four billion years ago was a struggle, and yet that was when it began. 1,2 With no ...

We have long struggled to determine how the first living organisms on Earth came together. Now, surprising evidence hints ...