Doctors at Jerusalem’s Hadassah Medical Center (which I had the pleasure of touring in June while I was in Israel) treated a 77-year-old patient with recurrent glioblastoma using Alpha DaRT, an experimental Israeli-developed treatment. Using millimeter-precise navigation, surgeons inserted tiny radioactive sources directly into the brain tumor—instead of delivering radiation from outside the brain. The sources release powerful alpha particles over a very short distance, targeting cancer cells while limiting radiation exposure to surrounding healthy brain tissue. The treatment had previously been performed on glioblastoma patients in the United States, but this was the first time it was used for the disease anywhere outside the U.S. The Israeli team also achieved a world first, using two separate implantation paths simultaneously to better target the patient’s large tumor. The treatment remains experimental, but researchers hope it could provide a new option against one of the most aggressive and difficult-to-treat brain cancers.