PACIFIC OCEAN (Jan. 18, 2021) Aviation Boatswain�s Mate (Fuel) 2nd Class Justin D. Giesler, from Pacifica, Calif., pours fuel for a sediment test aboard Nimitz-class aircraft carrier USS Carl Vinson (CVN 70). Vinson is currently underway conducting routine maritime operations. (U.S. Navy photo by Mass Communication Specialist 3rd Class Aaron T. Smith)