Photosynthesis involves several different chemical reactions, but these can be summarised in two main stages. In the first reaction, energy is used to split water molecules into hydrogen and oxygen.

Oscillating chemical reactions are fascinating to watch and ... disappears in the next stage and then reappears, repeating the cycle. "Soon we realized that we had observed a new—to the best ...

When chemists design new chemical reactions, one useful piece of information involves the reaction's transition state -- the point of no return from which a reaction must proceed.

Now, scientists at Scripps Research have discovered a new set of chemical reactions that use cyanide, ammonia and carbon dioxide -- all thought to be common on the early earth -- to generate amino ...