PhD (ICUBE, UMR @CNRS), cofunder of @Polyvionics… Blog: @Survols
Joined March 2015
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Stéphane Qنerry retweeted
51 ans après Diamant, une fusée reprend place sur son ancien pas de tir à Kourou. Avec Callisto, le CNES lance les essais au sol d’un retour qui se prépare dès maintenant. 🚀🛰️ l.clubic.com/bpN
Stéphane Qنerry retweeted
A filter that flew to the moon
Rudolf Kálmán's 1960 filter was met with scepticism, until Stanley Schmidt at NASA Ames saw how to use it for navigation.
An extended version guided Apollo to the Moon.
Stéphane Qنerry retweeted
The fact that Tesla was able to keep the development of the Roadster a secret for so long is pretty impressive.
Stéphane Qنerry retweeted
👩🚀🔴 L’astronaute Sophie Adenot estime que l’être humain « n'est pas prêt pour aller sur Mars » à ce jour, jugeant indispensable des ruptures technologiques pour contrer les effets néfastes de l’absence de gravité sur le corps.
Stéphane Qنerry retweeted
Cargo Dragon CRS-35 papermodel is now available! Second stage is included.
axmpaperspacescalemodels.com…
@SpaceX
Stéphane Qنerry retweeted
“We had to find a way and we did. Looking back, we were the luckiest people in the world; there was no choice but to be pioneers.” —Margaret Hamilton
Rest in peace, Margaret. Your trailblazing work leading the development of the on-board flight software for the Apollo spacecraft will forever be remembered. 🫡
ALT Margaret Hamilton poses in a command module mockup in 1969. Credit: MIT Photo Service
Stéphane Qنerry retweeted
In about 1 hour, at 14:20 GMT/16:20 CEST, join us live as ESA astronaut Sophie Adenot and her Crew-12 crewmates return to Earth! 🌍
Next stop for Dragon Freedom: splashdown. 🌊
📺 watch.esa.int + ESA’s #YouTube channel #εpsilon
More information: esa.int/Science_Exploration/…
Stéphane Qنerry retweeted
Artemis II reentry
Full video with audio: youtube.com/watch?v=7a4Z8h3K…
Stéphane Qنerry retweeted
[🇫🇷 version FR 👇] Day 235, orbit 3653 – After nearly eight months in space, our undocking is scheduled for this afternoon. Our return to Earth will mark the end of the orbital chapter of the #εpsilon mission, but not the end of the adventure! I look forward to continuing to share my experience with you during the post-flight tour.
But first: undocking, splashdown, flying back to Europe and getting adjusted to 1G!
Keep an eye on the @esaspaceflight account for updates about the undocking and splashdown!
🎥 @esa / @NASA
Jour 235, orbite 3653 – Après près de huit mois dans l’espace, notre désamarrage est prévu cet après-midi. Notre retour sur Terre marquera la fin de la phase orbitale de la mission #εpsilon, mais pas la fin de l’aventure ! J’ai hâte de continuer à partager cette expérience avec vous pendant la tournée post-mission.
Mais avant cela : désamarrage, amerrissage, retour en Europe et réadaptation à la gravité terrestre !
Gardez un œil sur le compte @esaspaceflight pour les horaires du désamarrage et de l’amerrissage !
#εpsilon • @Space_Station • @NASAJohnson • @CNES • @ESA_fr
Stéphane Qنerry retweeted
✅Réponse au quiz : S4A
Mise en service en 1959, S3MA est une soufflerie à rafales couvrant une plage de vitesses très large, de Mach 0,1 à Mach 6.
#Hypersonique #Innovation #Recherche
f.mtr.cool/z57u18h6qa
Stéphane Qنerry retweeted
🚀✈️ Malgré les années et un concept abandonné pour les vols habités, il reste quelque chose de fascinant et d’unique dans la navette spatiale. Une véritable icône de l’ère spatiale qui semble encore appartenir au futur. Ressentez-vous la même chose ?
Stéphane Qنerry retweeted
Just a friendly reminder that @NASA is building a nuclear-powered drone and sending it to Saturn’s moon Titan to search for the building blocks of life.
Honored to have helped build the laser that will zap Titan samples for analysis by the onboard mass spectrometer (called DraMS).
The actual spacecraft, a rotorcraft the size of a car, is being built by the legendary team at @JHUAPL.
It launches on a Falcon Heavy in July 2028, beginning a billion-mile journey to the outer Solar System.
Mission of a lifetime.
Stéphane Qنerry retweeted
It looks like an astronaut tumbling silently away from the International Space Station—arms outstretched, visor dark, no tether in sight. There is no one inside.
On 3 February 2006 the Expedition 12 crew pushed an obsolete Russian Orlan spacesuit out the airlock. Stuffed with old clothes and fitted with a small radio transmitter, the empty suit became SuitSat-1, a makeshift satellite that circled Earth every 90 minutes until it burned up in the atmosphere weeks later.
Credit: NASA / ISS Expedition 12 crew
Stéphane Qنerry retweeted
Pilotos de Caça em um teste de força 9G de força gravitacional.
Os testes de força G são uma parte crucial da formação e operação de pilotos de caça, expondo-os a condições extremas que desafiam os limites do corpo humano. Durante manobras de alta velocidade, como curvas fechadas ou mergulhos acentuados, os pilotos podem experimentar forças G que variam de 5 a 9 G, o que significa que a força exercida sobre eles pode ser até nove vezes maior do que o peso normal.
Essa pressão intensa provoca uma série de reações fisiológicas, como a perda de consciência e a diminuição da visão periférica, devido ao acúmulo de sangue nas extremidades inferiores do corpo. Para mitigar esses efeitos, os pilotos utilizam trajes especiais que comprimem as pernas e o abdômen, ajudando a manter o fluxo sanguíneo adequado para o cérebro durante as manobras extremas.
Stéphane Qنerry retweeted
La función de los spoilers no es frenar el avión, estás equivocado.
Y no te voy a mentir, yo también pensaba lo mismo.
Al fin y al cabo, cuando se despliegan aumentan la resistencia aerodinámica y también contribuyen a reducir la velocidad.
Pero esa no es su función principal.