• BarneyPiccolo@lemmy.today
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    9 hours ago

    I was a space kid, followed every space shot since 1965, was a super fan of Apollo 11, I had a subscription to Nat Geo growing up, just for the Space photos.

    So I can’t believe I’m saying this: Maybe we’ve gone far enough for now, and we should have a moratorium on space for the next 50 years.

    We should concentrate on Earth for awhile, dontcha think?

    • Trilogy3452@lemmy.world
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      32 minutes ago

      This isn’t really space science related, just commercialization. And about focusing on Earth: we should let scientists work on what they’re passionate about, IMO they’ll be more motivated to research their field of choice

    • LaunchesKayaks@lemmy.world
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      4 hours ago

      I’ve been really passionate about space. My bday is on the anniversary of the moon landing, and my one aunt has always reminded me of the fact. My great grandfather worked for NASA and my aunt gave me his stargazing binoculars that his brother gave him when he got hired at NASA. That part of my family instilled a huge love of science in me, esp space stuff. I wanna go to space more than anything, but I don’t have the brains or constitution to be an astronaut. So I just daydream, stargaze, and write poems about the cosmos.

    • Pennomi@lemmy.world
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      7 hours ago

      I dunno, every engineer not working on space almost certainly ends up optimizing some sort of ad delivery system. The tech industry is almost completely enshittified.

        • Pennomi@lemmy.world
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          7 hours ago

          That’s great, but that comes from funding those things, not shutting down a different industry. It’d be better to shut down non-productive industries like bombing brown kids in the Middle East.

    • dev_null@lemmy.ml
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      6 hours ago

      Believe it or not, you can do two things at once. Some people are interested in space, some in geology. That’s fine.

    • betanumerus@lemmy.ca
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      8 hours ago

      Right. Elon hires people on the basis they’ll be making Mars travel possible, but that Starship is really for dumping metal all over the night sky.

  • sp3ctr4l@lemmy.dbzer0.com
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    11 hours ago

    Elon Musk is such a goddamned literal supervillain that he managed to make the theme of Firefly wrong.

    Apparently, they can take the sky from you.

  • TrackinDaKraken@lemmy.world
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    11 hours ago

    Billionaires don’t give a fuck about anyone but themselves, not even their kids. And, we’ve all agreed to let billionaires run the world, it seems.

    • discocactus@lemmy.world
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      4 hours ago

      We’re just a few millimeters away from revoking that agreement though. There’s not that many of them.

  • MuteDog@lemmy.world
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    12 hours ago

    They might put a million satellites into orbit, but they’re certainly not going to be orbital data centers. At least not as we currently understand data centers. The idea that space is cold and therefore a great place to put data centers that get hot is the idea of a stoned moron talking out of their ass. Space is a vacuum, you know what else is a vacuum, the part of your portable coffee mug that keeps your beverage warm or cold for ages, because vacuum is a crazy good insulator. Just because space is cold doesn’t mean the heat from an orbital data center can dissipate into it. This dumb idea is never going to happen unless data canter technology improves to the point where they aren’t environmental disasters anymore.

    • how_we_burned@lemmy.zip
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      5 hours ago

      They already have orbital, distributed, data centres.

      It’s called Starlink. It’s already got the equivalent of entire cabinet worth of hardware in a single satellite.

      Scott Manley has been doing the maths and shown how it’s already incredibly viable with current tech, especially with how they can already cool 20kw of Starlink sat just fine.

      The biggest constraints on earth are town planning costs and delays/time, and of course power. (most DC cooling systems are closed looped)

      https://youtu.be/DCto6UkBJoI

      • Wigners_friend@piefed.social
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        27 minutes ago

        Starlink satellites carry antennae. That’s all they are. Not serious computational equipment.

        Edit: so his power argument is mostly fine. Different components do dissipate different amounts of heat at the same power. Antennae will not run as hot as GPUs, the fact they radiate power by design helps here. However, even if you could use all a v2 satellite’s power generation for compute, you need 35 sattelites per MW of compute. So at the lowest estimate 35000 for a GW data centre. For 2024 data centre capacity (47 GW computed from 415 TWh used) you need around 1.6 million sattelites. Now you need to network a vast cloud to get reasonable inter GPU performance.

        The required orbit would probably mean a whole strip of earth gets insane light pollution, due to the reflectivity of so many sattelites jammed into the narrow orbit. Note that each satellite is about as bright as a star visible to the naked eye.

        Edit edit: The lifetime of a data centre GPU is around 1-2 years for serious uptime. The sattelites are meant to have a 5 year lifetime.

    • Echo Dot@feddit.uk
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      11 hours ago

      It’s either data centres in space or giant mirrors to reflect sunlight.

      Presumably his engineers have explained this to him but he didn’t listen

      • fishy@lemmy.today
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        9 hours ago

        To cool the iss they’re exchanging heat into water pumping to ammonia exchangers then radiated through infrared. The radiators for a space data center would need to be prohibitively massive as I understand it.

        • sunnie@slrpnk.net
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          5 hours ago

          For real. Thermal regulation of spacecraft is a problem that current, non-data center, satellites are struggling with and increasing the load by orders of magnitude isn’t going to make things easier. You can easily calculate the area needed for radiative heat transfer for a perfect radiator and you quickly end up with some gargantuan panels. Perfect radiators are also perfect absorbers, so the whole system goes to shit if the panel isn’t facing deep space.

    • TransNeko@lemmy.world
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      12 hours ago

      Welcome to SpaceX where we provide a garenteed night sky view that is simply to die for. Subscribe now to enjoy your favorite night sky. Subscribe now for a lower price than normal. Remember, Subscription to SpaceX’s night sky is mandated by USA law. Those who don’t subscribe will be executed as Traitors and Terrorists. SpaceX’s Night Sky experience normally costs $399 per day but if you subscribe in the next 30 seconds using the following code (insert code here) you can enjoy SpaceX’s Night Sky for just $99.99 a day. subscribe now. Terms and conditions apply. SpaceX is not responsible for any propery damage, injuries, and/or deaths related to SpaceX satellites falling from orbit. Prices scale based on your race and gender with White men receiving a 100% discount.

  • Brkdncr@lemmy.world
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    4 hours ago

    Why not vantablack them? I thought they were already sending prototypes up that aren’t reflective and avoid the light pollution problem.

    The real issue is when other countries that don’t give a shit throw stuff up there and we can’t do much about it.

    • aesthelete@lemmy.world
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      3 hours ago

      The real issue is when other countries that don’t give a shit throw stuff up there and we can’t do much about it.

      Dude, we are the country that doesn’t give a shit and throws stuff up there and we can’t do much about it. WE ARE.

    • discocactus@lemmy.world
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      4 hours ago

      I mean. We shouldn’t probably. But can’t is a pretty strong word for that. Non reflective paint is a great idea. Stealth satellites.

  • Asafum@lemmy.world
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    17 hours ago

    It’s so infuriating… I occasionally do astrophotography and it’s getting to the point where any long exposure just has satellite streaks everywhere… Fuck Musk.

    • yucandu@lemmy.world
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      16 hours ago

      I remember just 10 years ago using a special app on my phone to alert me of any potential satellite flares so I could run out and catch them.

      Now I can’t look at the night sky for 2 minutes without seeing one.

      • errer@lemmy.world
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        13 hours ago

        You can actually see some in broad daylight. I was shocked one day looking up and seeing one (white dot in the picture, verified with sat tracking app).

      • Link@rentadrunk.org
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        13 hours ago

        For the uneducated, what do these look like and can you see them in areas with light pollution?

        • cecilkorik@piefed.ca
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          12 hours ago

          Yes. They are technically reflected sunlight, so they are as bright as the sun, just very small. It makes sense you can see them during sunlight, since they are reflections of sunlight. You will typically only see them on the side of the sky opposite the sun, but the exact angle depends on the location and orientation of the satellite and the surface that is actually doing the reflection.

          Generally speaking, they are dots that fade in somewhat gradually, moving at a consistent pace (typically slower than a shooting star, but faster than an airplane at cruising altitude) in a straight line direction for awhile at full brightness, then fading away.

        • yucandu@lemmy.world
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          9 hours ago

          To me, they look exactly like all the other stars in the sky, except they move, a bit slower than a plane, and they don’t blink.

        • Cethin@lemmy.zip
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          12 hours ago

          If you look towards the horizon with the sun, a little before sunrise or after sunset, you’ll probably be able to see flashes of them as they catch the light.

  • chahn.chris@piefed.social
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    9 hours ago

    Who needs the night sky when you can download the old night sky via satellite internet with gig speed downloads in vr? /s

  • Dale@lemmy.world
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    16 hours ago

    LEO satellites decay very quickly every one of them will burn up in the atmosphere within 10 years. They need to be replaced constantly. As soon as spacex goes out of business these will all fall out of the sky.

    • Manjushri@piefed.social
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      12 hours ago

      Don’t count on it. These things don’t just zip along in their orbits. LEO is crowded. They have to maneuver to avoid collisions… a lot.

      Over the past six months, Starlink satellites have been increasingly performing collision avoidance maneuvers. According to a report filed by SpaceX with the US Federal Communications Commission (FCC), SpaceX broadband satellites were forced to avoid more than 25 thousand times from December 1, 2022 to May 31, 2023. And since their launch in 2019, the total number of maneuvers has reached 50 thousand.

      If Starlink or any other mega-constellation company loses control of their satellites for any reason, there could be collisions. A recent study (Note: PDF) suggests that a sufficiently powerful CME could cause a runaway Kessler Syndrome in as little as 2.8 days if the loss of control lasts that long.

      • Dale@lemmy.world
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        7 hours ago

        And the orbits of that debris would still decay within a decade in LEO.

      • tempest@lemmy.ca
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        12 hours ago

        I mean with proper regulation or would be slightly better. If they can maneuver to avoid collisions they can likes deorbit themselves at a quicker pace.

        The main issue is if ever they went under someone would buy it, or try to buy it, at a discount. So they likely wouldn’t go away even if Star link went under.

      • gandalf_der_12te@discuss.tchncs.de
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        9 hours ago

        Eh, i’m not so sure. I just did a quick doodle.

        My opinion is that when a collision happens, it’s probably very unlikely for a single fragment to actually stay on a stable orbit around Earth. Chances are high that it gains a lot of energy and the orbit is significantly distorted. Now, if an orbit is already very close to Earth, that means that any distortion will make it not fit tightly around Earth anymore, instead will make it go elliptic and therefore on trajectory of collision with Earth. The only way a fragment would not do that is if it’s accelerated perfectly sideways, in which case it would continue to circle around Earth for 10 years before deorbiting due to atmospheric friction. So, the cascading is a bit limited.

          • Dale@lemmy.world
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            15 hours ago

            Lmao I wish. Satellites and their components have to be “hardened” to survive extreme temperatures and radiation in space. There’s probably nothing on it you could disable with any laser you could buy. Plus there’s the matter of targeting them.

            • OhVenus_Baby@lemmy.ml
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              3 hours ago

              How rare are these materials that are sending to space? Literally sending rare metals out of our planet. Even if they fall back down to earth. Is it even possible or viable money wise to recover them?

              • Dale@lemmy.world
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                3 hours ago

                Nope, not viable at all. A lot of it is straight up atomized on reentry especially for the smaller devices. Some of it is rare and some is not. The wet dream of these billionaires is they will be the first to figure out space mining and then manufacture. That’s why Elon musk has spacex and the boring company. Then raw resources like precious metals become infinite over night. Hopefully capitalism dies before that happens so we can all enjoy that.

            • fartographer@lemmy.world
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              15 hours ago

              Destroying these satellites with lasers poses a similar problem to what happens when you light zombies on fire: the satellites are held in space by their momentum and the reduced atmosphere vs Earth’s gravity. If you break the satellites into pieces via laser, then now you have uncontrolled and unpredictable space junk to deal with. Some of the pieces might return sooner, but what was once a concern is now a problem. Just like how a zombie at your door is very concerning, a zombie on fire at your door is an immediate problem.

              Now, what could be interesting would be sending up another satellite that sprays black paint on the sun-facing side of other satellites. The energy absorbed and then exhausted could propel it towards Earth sooner. Maybe? I dunno, I’m just a simple country Fartographer, your honor.

              • MousePotatoDoesStuff@lemmy.world
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                10 hours ago

                No, it would run out of black paint. Give it a robot arm with scissors or something to cut the power lines on the Starlinks. (And also push them out of orbit? Maybe exchange energy with some sort of maneuver to stay in orbit longer?)

                • fartographer@lemmy.world
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                  8 hours ago

                  Why would we cut the power before deorbiting them? But if you wanna be more aggressive like that, then how about a magnifying glass to focus sunlight on the satellite like a bully to ants?

                  Maybe exchange energy with some sort of maneuver to stay in orbit longer?

                  “No officer, I did not ‘run into their car…’ I improved their gas mileage by exchanging energy.”

            • teyrnon@sh.itjust.works
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              15 hours ago

              Now with lasers you buy perhaps, what about with the lasers you build?

              In the future where Federal Authority is concentrated on robbing and stealing elsewhere, I cannot imagine a high energy beam could not take these motherfuckers out.

              • 4am@lemmy.zip
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                14 hours ago

                If you have the capability to build a laser that can focus enough energy, from the ground through the atmosphere, with enough precision to lock on to an LEO constellation member long enough to disable it, you’d probably already either be captured, or working for DoD.

                Also: great, you exploded it before reentry. Now we have a hundred thousand smaller, lighter fragments skipping off the atmosphere, disbursing randomly, and spinning around like hypersonic chaff bullets for actual worthwhile spacecraft and satellites to fly through, twinkling in infrared like a billion new streaky sparkles on those telescopes. It takes a lot longer for all that bullshit to rain down, and it pollutes just the same. Tell me, who were you fighting for again and why?

                This is like when the humans blacken the sky in the Matrix to defeat the machines. Yeah it wrecked the earth, but is also didn’t defeat them and they just found something else to exploit.

                • teyrnon@sh.itjust.works
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                  14 hours ago

                  I mean I was trying to Broach a theoretical, completely academic, discussion about what could or could not take these satellites out.

            • harrys_balzac@lemmy.dbzer0.com
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              15 hours ago

              Good ole brute force is the best method, though, as you said, targeting is a huge problem. Basically you need a low Earth orbit shotgun.

    • Scotty_Trees@lemmy.world
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      14 hours ago

      sooo then this isn’t a problem if they all burn out eventually? hehe i’m just being pedantic of course

      • Dale@lemmy.world
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        13 hours ago

        There’s reasonable hope at least that this is a problem that will solve itself, and unfortunately we have bigger problems to worry about.

    • Einskjaldi@lemmy.world
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      16 hours ago

      I expect that we will get in orbit refueling to extend their life once you get a good nuclear and solar panel power tug with an electric thruster that can deliver fuel, they’re in a similar orbit if you just do that.

      • Dale@lemmy.world
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        16 hours ago

        Especially with the number of them it’s probably cheaper to just put up new satellites. LEO sats are designed to be temporary.

        • thejml@sh.itjust.works
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          15 hours ago

          Cheaper and easier to upgrade the constellation to newer and faster tech. If you have backwards compatibility, you just start launching v2 and v1 will eventually just burn up, and hopefully finish just in time for v3 to start launching so you only have to be compatible with n-1 versions.