Today, research led by Jonathan Simpson, and co-authored by Kasper van Wijk and Ludmila Adam and Caitlin Smith, was published in Reviews of Scientific Instrumentation. The four of us are very proud of this paper, as it has taken us many years leading up to the moment where we can do rock physics under in situ conditions in our pressure vessel with optical windows. Many labs will claim “unique” experimental capabilities, but this particular setup is truly the first one like it in the world. We look forward to tackling new geophysical problems that require estimation of the elastic properties of samples under pressure and temperature control.