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Source: Les Echos
avril 27, 2019
avril 23, 2019
http://www.air-cosmos.com/carton-plein-pour-le-falcon-heavy-de-spacex-122635
avril 16, 2019
En savoir plus https://fr.wikipedia.org/wiki/Trou_noir_supermassif https://www.futura-sciences.com/sciences/actualites/univers-premiere-image-trou-noir-supermassif-commentaires-aurelien-barrau-51210/
avril 15, 2019
In partnership with Scaled Composites, Stratolaunch successfully completed the first flight of the Stratolaunch aircraft. As part of this initial flight of the world’s largest aircraft, the pilots evaluated aircraft performance and handling qualities of the all-composite, duel-fuselage design. The airplane took off at 0658 PDT on April 13, 2019, from the Mojave Air & […]
mars 19, 2019
Lire sur le Monde du 13-03-2019 Les Chinois veulent mettre une centrale solaire en orbite Pierre Barthélémy La Chine a annoncé en février, par voie de presse, vouloir mettre en orbite une centrale solaire. La construction d’un prototype expérimental aurait commencé dans la mégapole de Chongqing, dans le centre du pays. L’idée de collecter l’énergie […]
mars 14, 2019
Source : The Economist. Science and technology Manoeuvring satellites Air braking A spacecraft’s solar panels can serve double-duty as sails Manoeuvring a satellite in orbit usually requires thrusters. Sometimes the thrust is provided by a fuel-burning rocket motor. Sometimes it comes from electrically heated gas. Both methods, though, add weight in the form of propellant, thus […]
mars 11, 2019
Voir https://www.industrie-techno.com/article/vol-d-essai-reussi-pour-la-capsule-crew-dragon-de-spacex.55285
mai 17, 2019
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