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    COMMANCHEDobyvani vesmiru a kosmonautika 🚀🛰️👩🏼‍🚀
    XCHAOS
    XCHAOS --- ---
    VOYTEX: rozhodně vítám každé další patentované unobtainum! :-)
    VOYTEX
    VOYTEX --- ---
    Radian Aerospace Reveals Next-Generation Spacecraft Material “Dur-E-Therm” Designed to Withstand Single-Stage-to-Orbit Flight - The Debrief
    https://thedebrief.org/radian-aerospace-reveals-next-generation-spacecraft-material-dur-e-therm-designed-to-withstand-single-stage-to-orbit-flight/
    In an email to The Debrief, Holder explained how Dur-E-Therm’s performance surpasses traditional spacecraft tiles used to coat modern re-entry vehicles. For example, a conventional thermal protection system (TPS) like shuttle tiles has a single-layer construction made with ablative materials designed to survive reentry only once. In contrast, Dur-E-Therm comprises several layers designed to perform several different purposes.

    “Dur-E-Therm is a multilayer insulation system that features a durable external shell capable of withstanding the heat of reentry without damage, along with layers of lightweight material underneath that endure the heat of reentry without degradation,” Holder explained.

    ...comprised of three components: a Carbon Silicon Carbide (C/SiC) Ceramic Matrix Composite (CMC) outer shell, insulation layers of commercially available Opacified Fibrous Insulation (OFI), aluminosilicate aerogel and a Radian-proprietary formulation of polymeric aerogel insulation, and mechanical attachments to the underlying cold structure.
    XCHAOS
    XCHAOS --- ---
    Europe is finally getting serious about commercial rockets | MIT Technology Review
    https://www.technologyreview.com/2025/03/20/1113582/europe-is-finally-getting-serious-about-commercial-rockets/
    NECROMAN
    NECROMAN --- ---
    Crew-9 return splashdown
    Watch the Boeing Starliner astronauts return to Earth today | The Verge
    https://www.theverge.com/news/628311/nasa-crew-10-mission-starliner-astronauts-return-spacex
    VOYTEX
    VOYTEX --- ---
    wcgpw

    DARPA Wants to Build Giant Space Structures Using Living Organisms - The Debrief
    https://thedebrief.org/darpa-wants-to-build-giant-space-structures-using-living-organisms/
    In a recent Request for Information (RFI) on large bio-mechanical space structures, DARPA’s initiative seeks to develop structures that can reach lengths of over 500 meters, including “tethers for space elevators, grid-nets for orbital debris remediation, and kilometer-scale interferometers for radio science applications.” These structures, if successful, would not only reduce the need for launching heavy materials from Earth but also provide a sustainable and adaptable approach to space construction.

    While all this sounds super cool, DARPA goes all out by requesting that these giant space structures be built with biological materials like “fungal mycelia” or protein-based fibers from “hagfish slime.” These materials can be integrated with mechanical components to achieve structural rigidity, much like a tent where the biological growth acts as the cover supported by underlying structural poles. For instance, a space elevator tether could be grown using a combination of fungal hyphae and mechanical fibers, allowing it to stretch from geostationary orbit to low Earth orbit while maintaining the necessary strength and durability.

    DARPA’s imagination is unfortunately tempered by some challenges.

    Maintaining biological processes in the harsh space environment is crucial, requiring careful control of factors like temperature, pressure, and humidity. However, it is no secret that there are several lifeforms on Earth and even some growing on the exterior of the International Space Station that can survive the intensity of ‘space living.’ Using them, or at least aspects of their genetics, to bolster these biological building materials may alleviate the issues of growing in space.
    VOYTEX
    VOYTEX --- ---
    VOYTEX: (mineno čb video na filmu, ne ta barevna fotka)
    VOYTEX
    VOYTEX --- ---
    SEJDA: a tohle "smula, zase zadna cenzura". McDivittuv film te veci vedle z Gemini je do dnes v trezoru. Smula.
    XCHAOS
    XCHAOS --- ---
    VOYTEX: zpoždění necenzurovaných obrázků o 80h, to je fakt konec světa...
    VOYTEX
    VOYTEX --- ---
    XCHAOS:, SEJDA: oficialne satelity, jiste. Je X-37 satelit? Je X-37 jediny nesatelit USA? Novinar nastesti chape: "or some other secret spacecraft".

    Jak vedle spravne poznamenal Howking, na detekci vsech (LEO) satelitu opravdu neni potreba gigapixelovy teleskop.
    SEJDA
    SEJDA --- ---
    "Data is first sent via a $5 million dedicated encrypted network to a secret United States intelligence community facility in California. An automated system detects new events, removes events containing American spy satellites, and releases imagery covering the remaining events to the scientific community one minute later. Complete unredacted images are released 80 hours later, after the satellites' orbits change, avoiding the permanent redaction done to images from the Pan-STARRS survey."

    Takze 80 hodin po porizeni, zverejnuje VRO vsechny snimky neuprane .. smula, zase zadna cenzura a ani ufoni.
    XCHAOS
    XCHAOS --- ---
    VOYTEX: ano, ale není to náhodou kvůli utajovaným vojenským družicím?
    VOYTEX
    VOYTEX --- ---
    SEJDA: ehm pokud si clanek prectes, zjistis, ze cenzurni system na Vera Rubin obs. potvrdilo min. Energetiky a Nat. Sci. Found.
    SEJDA
    SEJDA --- ---
    VOYTEX: zdroj je "nepredstavili se, ani nerekli z jake agentury jsou".
    SpaceX je soukroma firma a na tve touhy ti kaslou. Sam neustale upozornuji na to, ze SpaceX s nami nesdili, jestli Raptory funguji nominalne, ale jenom to ze "funguji", coz si lze overit i dalekohledem. Takze SpaceX sdili jenom informace, ktere si umis poridit sam.
    VOYTEX
    VOYTEX --- ---
    SEJDA: Ukazal nacek Elmo dashboardy StarSShip, nebo ne?
    SEJDA: "asi reditele jenom trolili.” zdroj?
    SEJDA
    SEJDA --- ---
    VOYTEX: fotky pekne ale ty kecy okolo.
    VOYTEX
    VOYTEX --- ---
    VOYTEX: a tady dashboard transponderu s rotatorem a spektrakem, vse citelne, civilni program ESA nema co skryvat. Fotky zverejneny radove hodiny, nektere minuty po prijeti.
    https://pbs.twimg.com/media/Gl24KDXXcAA9TD9.jpg?name=small&format=webp
    https://pbs.twimg.com/media/Gl2gZV9W4AASPtD.jpg?name=small&format=webp

    Srovnejte s pulrocne zpozdenymi snimky MRO, nad kterymi ma vyhradni kontrolu kontraktor.

    Nebo Reichsweltraumprogramm SSpaceX. Nacek nekdy ukazal detailni dashboardy "civilniho" programu "pro dobro lidstva"?
    VOYTEX
    VOYTEX --- ---
    DRAGON
    DRAGON --- ---
    prima rozhovor

    Brian Greene - Hyde Park Civilizace | Česká televize
    https://www.ceskatelevize.cz/porady/10441294653-hyde-park-civilizace/225411058090301/
    SEJDA
    SEJDA --- ---
    XCHAOS: hmotnost je pri harmonickem kmitani jenom cas potrebny k rozkmitani.
    XCHAOS
    XCHAOS --- ---
    SEJDA: nevím, jestli vibrace utlumí atmosféra, ale celková hmotnost snad ano.
    SEJDA
    SEJDA --- ---
    XCHAOS: my vubec nevime, jestli Raptory fungovaly bezchybne .. SpaceX s nami sdilela jenom "ma tah/nema tah". Nesdileli, jestli "ma ocekavany tah/nema ocekavany tag". Coz bylo videt u toho motoru Superheavy, ktery prestal fungovat kratce po startu jeho jasnost a delka plamene litala nahoru dolu az do bodu, kdy ho vyplo a az potom byl jeho kolacek cerny.

    My se od SpaceX dozvidame jenom o fatalnich zavadach motoru, ktere vedou k jeho vypnuti.

    Booster vibruje v atmosfere, ta muze jeho vibrace vyrazne utlumit. A navic na nej pusobi tiha a ta vibrace utlumi vyrazne.

    Starship ma mikro tihu, ma jen minimalni tah a mikro atmosferu, tam nema co vibrace zastavit.
    Kliknutím sem můžete změnit nastavení reklam