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The Best Timed Shot in TV History James Burke had only one chance to nail this scene and boy did he deliver. A clip from the 1978 BBC TV show Connections. In fact, the majority of modern liquid rocket engines use hydrogen and oxygen as their propellants, including the engines used in the Space Shuttle, the Saturn V rocket, and the SpaceX Falcon 9 rocket. These engines are highly reliable and efficient, making them ideal for launching spacecraft and other payloads into space. A hydrogen rocket en