A reduced-gravity aircraft is a type of fixed-wing aircraft that provides brief near-weightless environments for training astronauts, conducting research, and making gravity-free movie shots.
Project Mercury astronauts on board a C-131 Samaritan flying as the "vomit comet" in 1959
KC-135 0-G aircraft nicknamed "Vomit Comet"
Physicist Stephen Hawking on board a reduced-gravity aircraft in April 2007
Ecuadorian crew in weightlessness.
Heinz Haber was a German physicist and science writer who primarily became known for his TV programs and books about physics and environmental subjects. His lucid style of explaining hard science has frequently been imitated by later popular science presenters in Germany.
Heinz Haber (left) and Wernher von Braun, 1954