For decades, the most traditional technique to study proteins at their atomic level was X-ray crystallography. The name gives a hint of how it works: you make crystals and then shoot them with X-rays (there is a place called “synchrotron” where a powerful beam of X-rays is generated for these types of studies) to get the coordinates for each atom that composes the protein of the study \cite{McSweeney2014}. Many protein structures have been solved in the last century giving us tons of information about these sophisticated machines. Mechanisms of action, drug design and the discovery of the DNA has come along thanks to X-ray crystallography. And of course, many Nobel prizes have been awarded to discoveries related to this powerful technique \cite{Jaskolski2014}.