20:3220:32, 23 August 2019diffhist−30
Delta IV
Delta IV Heavy is not a derivative: it was part of Delta IV development from the beginning. Moved link to an additional mention
20:3220:32, 23 August 2019diffhist−30
Delta IV
Delta IV Heavy is not a derivative: it was part of Delta IV development from the beginning. Moved link to an additional mention