Instituto de Investigación Avanzada en Ciencias Químicas (IAdChem)

Some molecules, such as amino acids, exist in two forms that are mirror images of each other. However, living organisms contain only one of these mirror images. For a long time, the origin of this chemical asymmetry was a mystery to chemists. The Royal Swedish Academy of Sciences has awarded the Nobel Prize in Chemistry to Henri B. Kagan and Kenso Soai “for the discovery of nonlinear effects and autocatalysis in asymmetric organic synthesis,” which provided the solution to this enigma. 

A team led by a Spanish researcher has identified, near the centre of the Milky Way, a type of sugar composed of four carbon atoms, known as erythrulose, which on Earth is found in raspberries and self-tanning products. This would suggest that complex and biologically relevant molecules can form in space. Ribose and glucose had previously been discovered in samples from meteorites and asteroids, but until now no sugar had been directly detected in the interstellar medium. The finding is published in Nature Astronomy.