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    US Launch Vehicles and Spacecraft: Discussion & News

    GarryB
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    Post  GarryB Sun Dec 20, 2020 1:01 am

    There is zero chance of a rocket launching something headed for Mars that can land back safely to earth...

    Even a Saturn 5 like monster of a rocket would need multiple launches to take the sort of material that would be needed for a Mars trip where it could be assembled in orbit and launch towards the planet...

    The people speculating that this is some sort of system for delivering military forces anywhere on the planet rapidly are probably the closest to the truth... lets face it... no one in the US has deeper pockets to piss money away on useless stupid shit that likely wont work anyway than the US military.

    The fact that it will be enormously expensive and will never work can be a secret... working with the F-35 so far...

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    kvs
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    Post  kvs Thu Dec 31, 2020 10:18 pm



    The above video is relevant to the use of Starlink as a spy satellite network.

    1) Digital photography/filming with CCDs is vastly superior to chemical film. One can truly reach the limit of the
    optics and engage in image processing that is impossible with chemical film.

    2) If Olympus Mons can be filmed by some guy with rather small telescopes on Earth, you can bet your
    last penny that similar sized optics in LEO orbits can measure 10 meter sized objects and likely even
    smaller ones.

    So it is fully likely that Starlink will have optics and high resolution CCD cameras with real time processing
    of any part of the Earth. In fact, it will be multi-spectral imaging with CCDs and not just visible band.
    So clouds will not be a show stopper. A network of such satellites gains image "mining" ability that
    a single satellite cannot have. Multiple views can be synthesized in real time leading to actual resolution
    gains as shown just for one camera in the above video.

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    Post  lyle6 Thu Dec 31, 2020 11:19 pm

    Good thing the Peresvet is online and ready to give such orbital voyeurs a nice and thorough vibe check whenever they deign to overfly.



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    magnumcromagnon
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    Post  magnumcromagnon Mon Feb 01, 2021 9:32 pm

    Elon Musk's SpaceX Violated Test License Terms Last Year Prompting FAA Probe, Media Says
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    Post  Big_Gazza Tue Feb 02, 2021 11:29 pm

    Musk does it again!!  LOL!!!  RIP SN9 Laughing Laughing Laughing Laughing Laughing

    US Launch Vehicles and Spacecraft: Discussion & News - Page 10 EtP5hc0WgAIYkhw?format=jpg&name=4096x4096
    US Launch Vehicles and Spacecraft: Discussion & News - Page 10 EtP5ikdXUAAUW0C?format=jpg&name=4096x4096
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    US Launch Vehicles and Spacecraft: Discussion & News - Page 10 EtP5kIQWgAMFSp0?format=jpg&name=4096x4096

    Does anyone really think this POS is going to the Moon with 70 PAX????  The entire concept is UTTELY FLAWED. If one engine doesn't start at the exact moment of the critical landing maneourve (or starts late and/or flames out as it did here) then the ENTIRE VEHICLE IS LOST AND ALL PASSENGERS ARE DEAD.  This flaw was always obvious to anyone who cared to engage a little risk assessment, yet Space(-ex) has taken this dumb idea to such an advanced stage...  At least hyperloop just grinds to a halt when it fails, not slaming into the California sands amd blowing itself and its occupants into tiny bits...   Very Happy

    What a joke.  A space program driven by a naricisstic egotist whose claim to fame is based on creating an online payment system....

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    Isos
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    Post  Isos Tue Feb 02, 2021 11:46 pm

    He can use the money assholes gives to Tesla to build an escalator to the moon before the Tesla's stock market crashes. IMO he has enough right now...
    miketheterrible
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    Post  miketheterrible Wed Feb 03, 2021 12:13 am

    The thing looks like a grain silo with wings.

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    PapaDragon
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    Post  PapaDragon Wed Feb 03, 2021 2:42 am


    Did anyone tell that idiot what 3 years in zero gravity do to human skeleton?

    That info alone should have been enough to put the kibush on this farce...

    But I ain't complaining, free fireworks show on Uncle Sam's tab thumbsup

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    Big_Gazza
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    Post  Big_Gazza Wed Feb 03, 2021 3:26 am

    PapaDragon wrote:
    Did anyone tell that idiot what 3 years in zero gravity do to human skeleton?

    That info alone should have been enough to put the kibush on this farce...

    But I ain't complaining, free fireworks show on Uncle Sam's tab thumbsup


    haha!! Yeah, 70 people jammed into this thing for a 9 month flight to Mars? What a joke. Food? Water? Life support? Protection from lethal solar radiation? Nah, the almighty Elon isn't gonna sweat the little details. Its all about convincing the dumb herd that you have the "right stuff" so that those idiots will volunteer for an early grave.

    IMHO this contraption is actually aimed at the US military as a rapid-response sub-orbital troop carrier. Elite boots on the ground anywhere on the globe in 1 hour. Musk has a lust for the Pentagons black budget programs and will do and say whatever he needs to in order to get a slice of that taxpayer-funded gravy train.

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    GarryB
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    Post  GarryB Thu Feb 04, 2021 5:38 am

    IMHO this contraption is actually aimed at the US military as a rapid-response sub-orbital troop carrier. Elite boots on the ground anywhere on the globe in 1 hour.

    The irony is that if that is what it is then even MANPADS could take it down let alone any other air defence system... likely including rifle calibre machine guns.

    A WWII Hurricane or Spitfire could actually shoot it down... its trajectory can be determined very quickly and interceptor aircraft could be flown along the line of reentry and easily destroy this platform.

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    Isos
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    Post  Isos Thu Feb 04, 2021 10:37 am

    haha!! Yeah, 70 people jammed into this thing for a 9 month flight to Mars? What a joke. Food? Water? Life support? Protection from lethal solar radiation?

    They are the food...

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    PapaDragon
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    Post  PapaDragon Fri Feb 05, 2021 12:34 am

    Big_Gazza wrote:....haha!!  Yeah, 70 people jammed into this thing for a 9 month flight to Mars?  What a joke. Food? Water? Life support? Protection from lethal solar radiation?  Nah, the almighty Elon isn't gonna sweat the little details.  Its all about convincing the dumb herd that you have the "right stuff" so that those idiots will volunteer for an early grave....

    70 people? For 9 months? In that cargo container?

    Why not go all the way then?

    How about they do astronaut selection via process called the reaping?

    They could select tributes from every district

    Tributes could have their own sponsors

    Whoever survives the trip will earn great fortune and will be adored in the Capitol

    May the odds be ever in their favour...   pwnd   thumbsup

    kvs
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    Post  kvs Mon Feb 08, 2021 3:39 pm



    Chalk another "win" for the vaunted private space industry. The US company Phantom Space lives up to its name and
    photoshops a fake rocket in fake factory.

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    Post  limb Mon Feb 08, 2021 8:36 pm

    Back in the 2000s there were several documentaries about speculative journeys to Mars, and in them the spaceships all had rational elements in them:
    Artificial gravity from "tumbling" or having rotating parts, modular, orbitally assembled components, landing craft with tile heat shielding, additional unmanned item drop missions which would drop the necessary living quarters, etc.

    And now musk comes along with the cistern and suddenly noone cares about these intricacies, instead just droning about "MUSK SAID WE'RE GOING TO MARS, MUSK OH HE SO SMART HE CHUNGUS" and about how its its going to be so much safer because its not NASA and how it'll be reusable. No talk about modularity, or landing craft. The original plan for the apollo craft was for it to be a single piece craft that would land on the moon and return to the athmosphere. This idea proved stupid for obvious reasons and was quickly discarded for the lunar lander/ return capsule. However now this design step has been conveniently forgotten so that musk shills can drink the starship koolaid,and can call naysayers jealous russians.

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    GarryB
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    Post  GarryB Mon Feb 15, 2021 11:48 am

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    kvs
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    Post  kvs Tue Feb 16, 2021 10:20 pm

    I was going to link that very same video.   Having a scientist analyze the hype is always a good thing.   Reality does not
    conform to people's wishes.

    But there is definite value in reusability. The economics of using the same launcher are best for the first few uses and
    the cost benefit asymptotes after that. So being able to reuse a rocket 4 times is already a major leap in cost to LEO.
    There is not much additional value for trying to reuse it 10 times or more. I think that 4-6 times is perfectly reasonable given
    current technology.

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    Post  George1 Fri Feb 19, 2021 1:29 pm

    (CNN)The NASA Perseverance rover safely landed on Mars after its 292.5 million-mile journey from Earth, the agency confirmed at 3:55 p.m. ET Thursday. The rover landed itself flawlessly, according to the mission's team.



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    PapaDragon
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    Post  PapaDragon Sat Feb 20, 2021 4:02 am


    Well whaddya know, it turns out that location chosen for landing, the Jezero crater is named after a town in Republic of Srpska

    https://en.wikipedia.org/wiki/Jezero,_Bosnia_and_Herzegovina#Jezero_on_Mars

    There was a big landing celebration at local school and everything thumbsup


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