Dr. Bill Roggenthen, co-principal investigator for the proposal to build a deep underground science and engineering laboratory at the former Homestake gold mine, said last week’s review in Berkeley focused primarily on what the lab facility will look like. It was the first time the National Science Foundation reviewed plans for how the DUSEL would be constructed and what it could consist of. Though the preliminary design will not be 100 percent completed until the proposal is submitted at the end of the year, Roggenthen said the DUSEL team is far enough along in the process to be able to discuss it with the NSF and gain feedback.