Secure data transmission requires robust encryption strategies to prevent unauthorized access. Although software-based encryption has been extensively explored, advances in high-speed computing and the development of quantum systems increasingly challenge the security...
The idea of sending humans to Mars is often framed as a question of ambition or funding. In reality, future missions to Mars are a logistics problem shaped by physics. Distance, energy, time and mass define what is possible long before politics or budgets enter the...
La propulsion sans carburant dans l’espace n’est plus une hypothèse de laboratoire. Des chercheurs ont soumis des cubes de graphène ultra-léger à un faisceau laser en impesanteur et observé une accélération immédiate. Les petits satellites et les voiles...
Earth’s gravitational field affects everything in materials science research. It drives convection currents in solutions, causes denser particles to sediment out of suspensions, forces immiscible phases to separate by density, and deforms soft or liquid samples...
To meet the need for global coverage, space–air–ground integrated networks (SAGINs) are crucial, but the openness of wireless links makes communications vulnerable to eavesdropping. This paper investigates the physical layer security (PLS) of uplink transmissions in a...
Terriennes, Terriens, vous avez été très nombreuses et nombreux à suivre ce direct consacré au survol de la Lune par Artemis-2 après plus d’un demi-siècle sans mission habitée lunaire. Nous souhaitons un bon retour parmi nous à Reid Wiseman, Victor Glover, Christina...
