Michael Dahan

A new era of space exploration begins! 🌌 ALTEN's engineers and researchers are pushing the boundaries of space exploration and innovation. Three of our talents—Benoit Bieri, Conall de Paor, and Esteban Décline—are set to present groundbreaking research at the International Astronautical Congress (IAC) 2024. 🔍 Here’s a glimpse of their groundbreaking research: - Responsive Space Systems: optimizing the entire mission life-cycle and mapping satellite capabilities. - Moneyball in Space: designing cost-effective missions by analyzing essential components. - Cosmic Radiation & Space Debris: developing solutions to protect solar power satellites from potential threats. Learn more about their research projects -> https://bit.ly/3zR8dl0 #TeamALTEN #IAC2024 #Engineering #Satellite #Aerospace #SpaceInsights

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ESA: "Tune in to ESA WebTV on 5 September from 03:30 CEST to watch the satellite soar into space on the last Vega rocket to be launched from Europe’s Spaceport in Kourou, French Guiana. Sentinel-2C is scheduled to liftoff at 03:50 CEST. The Copernicus Sentinel-2 mission provides high-resolution optical imagery for a wide range of applications including land, water and atmospheric monitoring. The mission is based on a constellation of two identical satellites flying in the same orbit but 180° apart: Sentinel-2A and Sentinel-2B. Together, they cover all of Earth’s land and coastal waters every five days. The satellites each carry a high-resolution multispectral imager that generates optical images in the visible, near-infrared and shortwave-infrared part of the electromagnetic spectrum. From their altitude of 786 km, they provide continuous imagery in 13 spectral bands with resolutions of 10 m, 20 m and 60 m, with a large swath width of 290 km. Sentinel-2C is the third in the Sentinel-2 series. Once commissioned in orbit, it will replace its predecessor, Sentinel-2A. Later, Sentinel-2D will replace Sentinel-2B. This all ensures the continuity of imagery for Copernicus Services and beyond." https://lnkd.in/ecu4hEaw

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The coming launch of the ESA’S Ariane 6 rocket marks an important highlight in Europese’s ambition for autonomous access to space. For the development of Ariane 6, ESA is working with an industrial network of several hundred companies in 13 European countries, led by prime contractor ArianeGroup. As NLR, we are proud to be part of that network. In the period 2014-2020, we equipped the three wind tunnel models for ArianeGroup with a significant amount of static and reference dynamic pressure sensors, related to various stages in the development of the Ariane 6 rocket: - Aerodynamic characteristics of basic layout - Buffeting and acoustic characteristics of detailed aerodynamic shape - Aerodynamic characteristics of detailed aerodynamic shape   The results from the wind tunnel tests performed on the models have delivered the design teams of ArianeGroup valuable data to be able to advance the design over the years.   We wish European Space Agency - ESA, ArianeGroup, ARIANESPACE and CNES and all other parties involved, a very successful launch and first mission on 9 July 2024!   FOLLOW THE MISSION: https://lnkd.in/eNDkdaAp Photo left: wind tunnel model Ariane 6, credits NLR Photo right: Artist's view of the Ariane 6 (A62) Flight FM1, credits ESA - D. Ducros

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The European space race has just received a BOOST! The European Space Agency (ESA) is investing in the future, with €230 million for the Prometheus engine and reusable stages, plus €44 million for new lightweight launchers. From ArianeGroup's reusable stage to new players like Rocket Factory Augsburg and Orbex, Europe aims to make significant strides toward creating a more sustainable and flexible space economy. It's an exciting time to be part of this new space frontier. Read Emilio Emilio Cozzi's full article on our website: https://lnkd.in/dNkNPres #SpaceEconomyMaster #SpaceEconomy #NewSpace #NewSpaceEconomy #SpaceEconomyInstitute #Space

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On 20 November 2024, the European Space Agency - ESA signed contracts with ArianeGroup to advance the demonstration of the Prometheus engine and the reusable rocket stage demonstrator, Themis. These contracts, worth approximately €230 million, were signed by ESA’s Director of Space Transportation, Toni Tolker-Nielsen, and Philippe Clar, Head of Civil Space Programs at ArianeGroup, and mark a significant step forward in European space technology. The focus is on creating low-cost engines and reusable rocket stages to prioritise reusability and, thus, lowering space access costs and enhancing launch service flexibility. The Prometheus engine project aims to demonstrate a reusable propulsion system using liquid methane, which is denser and easier to handle than hydrogen. The Themis project will incorporate the Prometheus model into a first-stage rocket demonstrator, enhancing its capabilities for greater altitude and extended flight duration. This initiative exemplifies ESA’s commitment to fostering innovation and maintaining Europe’s competitiveness in the global launch market. By backing reusable rocket technologies, ESA aims for a sustainable, resilient, and competitive European space transportation future. Read more: https://lnkd.in/dzdaC_wE #SpaceTransportation #SpaceInnovation #RocketReusability #SpaceTechnology

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Ariane 6 to Launch SIDLOC Experiment for Space Safety, Paris, France (SPX) Jun 01, 2024 Europe's newest rocket, Ariane 6, is set to launch soon, carrying multiple space missions with unique objectives. This inaugural flight will highlight Ariane 6's versatility and heavy-lift capabilities. Among the payloads is SIDLOC, an experiment by the Greek non-profit Libre Space Foundation (LSF), aimed at enhancing space safety through rapid identification and localization of spacecraft., : Paris, France (SPX) Jun 01,

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Call for Space experts to perfectionate the Space Fresco/ La Fresque du Spatial. Please volunteers to check out the tool for its finalization! Link below

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Protection of a GKP qubit by dissipation engineering in a high-impedance superconducting circuit Brieuc Beauseigneur PhD supervised by Pierre Rouchon https://lnkd.in/e2xG4zx3 Abstract: GKP qubits stand as promising candidates in the pursuit of fault-tolerant quantum computing with minimal hardware overhead. These qubits have recently been synthesized and partially corrected, notably within a superconducting cavity architecture coupled to an ancillary physical qubit. However, in these experiments, errors originating from the ancillary qubit tend to propagate to the GKP qubit, thereby limiting its coherence. Throughout this thesis, we will explore an alternative approach for synthesizing and protecting a GKP qubit, based on the engineering of modular interactions between a superconducting resonator and a cold reservoir. This method relies on the parametric pumping of a high-impedance Josephson circuit by a microwave frequency comb.

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Recommendations on Quantum Computing from GIFAS Report on quantum technologies for Aerospace-Defense applications - Slides presented by Frédéric Barbaresco and prepared with Sylvain Schwartz, alain refloch and Baptiste Voillequin for 2nd TQCI International Seminar on "Benchmarks for Quantum Computers" organized by TERATEC, LNE, Thales and Université de Reims Champagne-Ardenne in Reims 4 & 5 June 2024 https://lnkd.in/e-vhjngR https://lnkd.in/etCXdmVX https://lnkd.in/eVqi9fFq This report was written at the request of the GIFAS R&D commission by a working group dedicated to quantum technologies and made up of representatives of main French industry players in the field, under the coordination of ONERA. This report defines the major contributions for the quantum technologies, the targeted applications from aerospace-defense sector and the associated calendar horizons as well as recommendations for the sector and for the national quantum strategy. This GIFAS R&D Commission working group led by ONERA with 14 GIFAS companies has elaborated recommendations on sensors, communication, computing and enabling technologies. We will present here main recommendations about quantum computing.

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Protection of a GKP qubit by dissipation engineering in a high-impedance superconducting circuit PhD supervised by Pierre Rouchon https://theses.fr/s385114 GKP qubits stand as promising candidates in the pursuit of fault-tolerant quantum computing with minimal hardware overhead. These qubits have recently been synthesized and partially corrected, notably within a superconducting cavity architecture coupled to an ancillary physical qubit. However, in these experiments, errors originating from the ancillary qubit tend to propagate to the GKP qubit, thereby limiting its coherence. Throughout this thesis, we will explore an alternative approach for synthesizing and protecting a GKP qubit, based on the engineering of modular interactions between a superconducting resonator and a cold reservoir. This method relies on the parametric pumping of a high-impedance Josephson circuit by a microwave frequency comb.

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🚀 The Art of Explaining Cutting-Edge Science! 🎨 Additive manufacturing is a game-changer, offering unmatched freedom for designing intricate structures. But mastering processes like laser-powder bed fusion (L-PBF) requires navigating a maze of parameters to ensure precision and quality. At the IRT Saint Exupéry, we have combined machine learning with physics-based insights to predict wall thicknesses and map the process window. Using physically informed Gaussian processes, we have achieved material- and machine-independent predictions with fewer training points and superior accuracy. This breakthrough showcases the power of blending data-driven methods with physical principles to tackle complex challenges. 💡 And what better way to tell this story than through stunning visuals? Lisa Rivière, PhD has brought this research to life in an illustrated triptych that’s as beautiful as it is informative. A big thanks for making this work accessible and engaging. Let’s celebrate the intersection of science, design, and storytelling!

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On July 9, 2024, the Ariane 6 rocket debuted by lifting off from the Guiana Space Centre in Kourou. The maiden flight of Europe’s new heavy-lift launcher successfully deployed several payloads from the industry, space agencies, and universities. However, after deploying most payloads, the upper stage did not perform the third ignition of its Vinci engine. During the World Space Business Week, Steven Rutgers, ARIANESPACE COO, announced that the Ariane 6 Launcher Task Force, staffed by personnel from ESA, CNES, Arianespace, and Ariangroup, shed light on the causes of the issue. Read more: https://lnkd.in/d_HjqpYH #Ariane6 #Arianespace #Arianegroup #CNES #ESA #Europe #WSBW2024 #WSBW

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The ISL Institut franco-allemand de recherches de Saint-Louis (French-German Research Institute of Saint-Louis) is everywhere. The ISL's scientific work is leading to innovations for the armed forces. For example, this article discusses the future helmets of the French Army, which may be equipped with the SLAC system [for Système de Localisation Acoustique pour le Combattant] developed at the ISL. https://lnkd.in/e6bxKHM4

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MBDA showcases European missile systems leadership at Farnborough International Airshow 2024 #AirDominance #AirDefense #Innovation #Farnborough #Defense #Aerospace MBDA MBDA dominates the skies! ✈️💪 Leading the charge at #FIA2024 with cutting-edge air dominance, defence & strike capabilities. From #ASRAAM & #Meteor missiles to innovative #Orchestrike AI, we're securing our nations' skies. https://lnkd.in/d6-mi_F5

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ESA: Space Team Europe for Ariane 6: We did it! After many long hours, working through the night, plenty of sacrifices, tense moments during countdown and hot-fire tests – as well as months spent in masks and keeping a safe distance during the COVID-19 pandemic – Space Team Europe has done it. Ariane 6 took flight on 9 July 2024 and restored Europe’s autonomous access to space. Thousands of people from different backgrounds, with different nationalities and speaking different languages all united around a shared vision: taking Europe to space. Thank you Space Team Europe for your commitment, incredible team spirit and expertise. Go Ariane 6! Ariane 6 launched on 9 July 2024 from Europe's Spaceport in French Guiana at 16:00 local time (20:00 BST, 21:00 CEST). Europe’s newest heavy-lift rocket, it is designed to provide great power and flexibility at a lower cost than its predecessors. The launcher’s configuration – with an upgraded main stage, a choice of either two or four powerful boosters and a new restartable upper stage – will provide Europe with greater efficiency and possibility as it can launch multiple missions into different orbits on a single flight.

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