Sidi Chen, PhD (Damon Runyon Fellow ‘12-‘15) and Feng Zhang, PhD (Damon Runyon-Rachleff Innovator ‘12-‘14) of the Broad Institute and Massachusetts Institute of Technology, Cambridge, developed a new mouse model that allows scientists to use the CRISPR-Cas9 system for in vivo genome editing experiments. They demonstrated the utility of the new “Cas9 mouse” model to edit multiple genes in a variety of cell types, and to model lung adenocarcinoma. The mouse has already been made available to the entire scientific community. These findings were published in the journal Cell.