Could we soon be saying goodbye to long-haul flights? One company has taken an important step in making this dream come true. Oxford's Reaction Engines Ltd (REL) announced it has received a €10,000 development contract with ESA, so it can work on its revolutionary Synergistic Air-Breathing Rocket Engine (SABRE). This technology can work both in the Earth's atmosphere and in space - which is crucial to space planes. ( scroll down for video explanation of technology)