Actualités
A Scalable Benchmark for Long-Horizon UAV Vision-Language Navigation from Satellite Imagery
Urban uncrewed aerial vehicle (UAV) vision-language navigation (VLN) requires agents to follow instructions across extended urban spaces, inherently demanding long-term memory and geospatial grounding. However, scaling existing benchmarks remains difficult because of...
NASA tests dual mode propulsion CubeSat ahead of launch
Spacecraft propulsion traditionally relies on volatile fuels and separate, bulky systems for different types of maneuvering in space. NASA is working to change that. Engineers at NASA's Marshall Space Flight Center in Huntsville, Alabama, recently completed a series...
University of Vienna Demonstrates First In-Orbit Operation of a Programmable Quantum Photonic Processor
A research team led by the University of Vienna and the Vienna Center for Quantum Science and Technology (VCQ) has achieved the first demonstration of two-photon quantum interference and programmable matrix execution in low Earth orbit (LEO). Deployed aboard a 3U...
Virginia Tech-led project uses additive manufacturing to develop self-lubricating alloys for extreme heat
Researchers from Virginia Tech, Arizona State University and Iowa State University have received a $2 million grant from the U.S. National Science Foundation (NSF) to develop self-lubricating, wear-resistant metal alloys for extreme-temperature applications. The...
Le Pentagone notifie à Raytheon un contrat de 20,7 milliards de dollars pour produire 1 900 missiles air-air AMRAAM par an
Ces dernières années, et singulièrement depuis le début de la guerre en Ukraine, le missile air-air AIM-120 AMRAAM [Advanced Medium-Range Air-to-Air Missile], produit par Raytheon, filiale de RTX, s’est vendu comme des «petits pains», toutes versions confondues. En...
L3Harris wins seven-year Lockheed Martin contract worth more than $6 billion to expand propulsion production for THAAD missile interceptors
L3Harris Technologies has received an undefinitized contract from Lockheed Martin valued at more than $6 billion, excluding escalations, to expand propulsion production for the THAAD missile defense system. The contract covers seven years, the company said. L3Harris...
Selon le Sénat, le rétablissement d’une composante nucléaire terrestre pourrait être une «option à ne pas négliger»
Lors d’un discours prononcé sur la base navale de l’Île-Longue, le 2 mars, le président Macron fit savoir que, compte tenu du contexte international et de l’évolution des menaces, il avait «ordonné d’augmenter le nombre de têtes nucléaires» de l’arsenal français,...
Thales se dote à Bordeaux d’un espace dédié à la culture du risque
La montée en cadence et la rotation des effectifs fragilisent la culture du risque pourtant indissociable de l’industrie aéronautique. Pour y remédier, Thales ouvre à Bordeaux un espace de formation à la sécurité aérienne pour sensibiliser salariés, sous-traitants et...
thermal management assembly for a hybrid-electric aircraft propulsion system
A propulsion system includes an electrical assembly. The electrical assembly includes an electric machine, a control unit, and a thermal management assembly. The control unit is electrically connected to the electric machine. The thermal management assembly includes...
Two-speed epicyclic gearbox with clutch for aircraft propulsion system
An aircraft propulsion system is provided that includes a thermal engine, a gearbox, and a hydraulically actuated clutch system. The gearbox includes an input shaft, an output shaft, an epicyclic gear arrangement, a drive gear, and a first layshaft assembly. The...
