Two B-52s flew non-stop to Australia in a 44-hour mission

Two B-52Hs from the 96th Bomb Squadron flew non-stop to Australia on Jun. 30, dropped inert bombs at Delamere Air Weapons Range, and flew back in a 44-hour mission.
Members of the 96th Bomb Squadron load their equipment onto a B-52H Stratofortress on Barksdale Air Force Base, La. June 30, 2015. Before takeoff, the aircrew review the mission and procedures for ground checks. (U.S. Air Force photo/Senior Airman Benjamin Raughton)
U.S. Air Force photo by Senior Amn. Benjamin Raughton

Source: Two B-52s flew non-stop to Australia in a 44-hour mission