The United Arab Emirates (UAE) has reaffirmed its commitment to sending a probe to Mars in 2021. More details have emerged of the planned mission, which is timed to coincide with the 50th anniversary of the UAE's formation. In this new video, from the Mohammed Bin Rashid Space Centre (MBRSC), scientists explain how the 1,500 kilogram Hope (or "al-Amal" in Arabic) spacecraft will study the Martian atmosphere and climate.
If successful, not only will it become the first Arabian mission to Mars, it will also create the first planet-wide picture of how the Martian atmosphere changes throughout the day and between seasons. This could improve our understanding of how aerosols, ozone, water ice, water vapour and other physical processes affect us here on Earth, while also being useful in planning future manned colonies. The resulting data will be shared freely with over 200 institutions worldwide. More information is available on the MBRSC website, which includes an image gallery.
Reaction Engines Ltd. – a British aerospace company – has announced that analysis undertaken by the US Air Force Research Laboratory (AFRL) has confirmed the feasibility of the Synergetic Air-Breathing Rocket Engine ('SABRE') concept.
Through its ability to "breathe" air from the atmosphere, SABRE could offer a significant reduction in propellant consumption compared to conventional rocket engines that have to carry their own oxygen, which is heavy. The weight saved by carrying less oxygen could improve launch vehicle capabilities, by greatly increasing their operational flexibility and efficiency, while lowering costs by an order of magnitude. Space tourism would become far cheaper and safer. Additionally, the SABRE concept could potentially be configured to efficiently power aircraft flying at high supersonic and hypersonic speeds.
New analysis by the US AFRL, as part of a joint research collaboration agreement, examined the thermodynamic cycle of the SABRE concept. They found no significant barrier to its theoretical viability, provided the engine component and integration challenges are met. Reaction Engines Ltd. and AFRL are now formulating plans for continued collaboration on the SABRE engine. The proposed work will include investigation of vehicle concepts based on a SABRE-derived propulsion system.
The next phase will also include physical testing of SABRE engine components, alongside exploration of the defence applications for Reaction Engines' heat exchanger technologies.
Sam Hutchison, Director of Corporate Development at Reaction Engines, commented as follows: “The confirmation by AFRL of the feasibility of the SABRE engine cycle has further validated our team’s own assessment and conviction that the SABRE engine represents a potential breakthrough in propulsion that could lead to game changing space access and high speed flight capability. We look forward to continued collaboration with AFRL”.
If all goes to plan, the first test flights of Skylon – a single-stage-to-orbit spaceplane using the SABRE engine – could occur within five years, with visits to the International Space Station during the early 2020s.