departmentofenergy 26896453683 DOE Secretary E. Moniz with PECASE Awardee Tammy Ma and Lieutenant General Frank G. Klotz, USAF (Ret), Under Secretary for Nuclear Security and N

---

Size: 1938px × 1290px
Photo credit: © Nature and Science / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: national, park