(September 23, 2021 at 10:10 pm)Anomalocaris Wrote: On the contrary, kerosine, a petroleum fossil fuel, is the most used, and most widely used, propellants for space rockets. It has very desirable properties as first stage rocket fuel. So in rockets that employ different types of fuel for different stages, kerosine typically represent by far the largest fraction of the total fuel load. Amongst others Saturn 5 used it, Soyuz, Zenit, Delta, Atlas, Elon Musk’s Falcon uses it now. Some space powers such as russia and China are actually moving away from highly toxic synthetic rocket fuel towards much safer and more benign refined kerosine.
SpaceX now uses methane, not kerosene. Bezos will copy Musk with his New Glenn orbital craft. New Shepard used hydrogen, but that never needed to get to orbit.
