modeless
10 months ago
SpaceX just posted this video of the last test. It's one of the most inspiring things I've ever seen.
hackitup7
10 months ago
I find the experience of watching these SpaceX videos very emotional. There's something really inspiring both from an "exploring the universe" perspective and also just from the human side of all of the effort that went into them.
The first video that really got to me was when they landed multiple boosters. This one as well, especially seeing the rocket take off with every booster firing when compared with the first Starship launch when you could see that some failed to light. It's like watching your child take their first steps, and then seeing them win an Olympic medal for running. Just incredible stuff.
thelastparadise
10 months ago
This kind of thing is why I got into engineering in the first place.
There's so much more to it than money.
tbone902
10 months ago
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coconoconut
10 months ago
[dead]
guld
10 months ago
For those of you who like dubstep, start the following video first https://www.youtube.com/watch?v=t2eBMuL0C2o then 3 seconds later start to watch the (muted) SpaceX video from OP's post and thank me later. ;-)
Especially the catch is awesome!
TeMPOraL
10 months ago
Nice, how did you find a music clip with such a good match across the whole video? Or are you saying you know that SpaceX media people were using that as test music when cutting theirs?
guld
10 months ago
Actually I was just listening to this song, when OP recommended the SpaceX video and I did not want to pause the song. A happy accident.
teractiveodular
10 months ago
OK, that's downright creepy. Especially that the singing starts with the lyrics "holding on" at the exact moment the booster is caught by the chopsticks.
halz
10 months ago
Another rough take with some orchestra music from Stellaris, of all things. Start the SpaceX video and 'Towards Utopia' at around the 2:21 mark https://youtu.be/887f76RXvdE?t=141
kak9
10 months ago
this was great. i hope someone just recuts video with exactly this soundtrack
lasc4r
10 months ago
I think it's a cool achievement, but for some perspective NASA first did a vertical rocket ship landing without chopsticks decades ago.
And the whole point of this thing was to do that on the moon, which is never going to happen at this rate.
joshmarlow
10 months ago
And in 2002 a neuroscientist hooked a camera to a blind man's brain and he could see well enough to drive a car around an empty parking lot without running into things. And yet there are still many blind people.
Doing something cool once doesn't impact civilization. Doing it affordably at scale does. If Space X can do the chopstick landing reliably and integrate it into their operations, then that will be impactful - and change civilization.
dylan604
10 months ago
Is the whole point of this thing to land the first stage on the moon, or just the Starship? My understanding is that it's just Starship, and the first stage will always return to Earth. I think one of us has a very confused understanding of the whole point of the thing.
daedalus_j
10 months ago
They did? I've not heard of that, and a cursory search isn't finding anything. Got any more info on this, which rocket, etc? I'd love to learn about that.
tcmart14
10 months ago
I am assuming they are talking about this?
https://www.youtube.com/watch?v=JzXcTFfV3Ls&t=3s
Edit: Another link with probably better info
https://www.youtube.com/watch?v=AC1wgWi9WWU
TLDR: DC-X (Delta Clipper X)
user
10 months ago
carabiner
10 months ago
Just makes it more humiliating for SpaceX competitors. ESA, China, ULA all playing catchup to NASA tech from decades ago. Why didn't they commercialize it?
Did Apple invent the touchscreen or the cell phone or high dpi displays?
theodric
10 months ago
So if we're moving the goalposts from hundreds of successful booster landings and reuses back to a simple technology demonstrator executing a hop in the 1990s, then I propose we go all the way back to propulsively landing a manned capsule on the Moon in 1969. SpaceX is 60 years obsolete!
adamm255
10 months ago
NASA Landed on the moon in the 60s with an abacus. SpaceX can’t get out of low Earth orbit.
gridspy
10 months ago
I think it's a really responsible decision by SpaceX to not put their StarShip stage into a full orbit until they have demonstrated the ability to get it back out of orbit.
They should be applauded for this, along with their iterative approach.
Note that this next test will demonstrate re-light of the engine in space at micro-gravity. This is the demonstration needed prior to putting the StarShip in orbit. We'll probably see a full orbital test for the flight after this one.
They could have easily put previous tests into orbit - it's a fairly minor change to their existing regime and they have plenty of fuel to use.
zwily
10 months ago
Do you really believe that they “can’t” get out of low earth orbit, as opposed to “haven’t yet”??
ranger207
10 months ago
Didn't SpaceX launch Europa Clipper to Jupiter a few weeks ago?
bandyaboot
10 months ago
They also flung a Tesla Roadster off into a wayward journey around the Sun. Not nearly as impressive I know, but significantly more amusing.
tim333
10 months ago
Yup. Passed by Mars in Oct 2020 which is definitely outside low earth orbit.
shirro
10 months ago
Clipper is a massive payload for a planetary science mission as well. SLS was the only other operational US vehicle with the payload capacity.
njarboe
10 months ago
The Clipper was planned to be launched on the SLS, but due to delays in the SLS program and its massive cost ($2+ billion per launch), it was decided to use the Falcon Heavy to launch it even though the Falcon Heavy is a bit smaller and it will take 5 years instead of 3 to get to Jupiter.
user
10 months ago
neverrroot
10 months ago
Amazing what one stubborn person can put into motion
paul7986
10 months ago
Not into space things and while this is cool i wonder what the great significance of this is? I see lots signaling how great this is and it's lost on me.
modeless
10 months ago
Totally reasonable question. This is the first rocket ever that will (assuming further success) land in its entirety back on the launch pad, refuel, and go back to orbit the same day.
Imagine that every time an airliner landed its cockpit was destroyed and you had to build a new one. A fully reusable airplane would be a transformational improvement. That's the level of achievement we're talking about here.
eunoia
10 months ago
> go again the same day.
That seems like a stretch. What is the actual turnaround time for Starship? fwiw the Shuttle had a lot of lofty promises of reusability that were technically true as long as you didn't consider how long the turnaround time was.
gridspy
10 months ago
The shuttle boosters required rebuilding / refueling (which is solid rocket goop) and the fuel tank was completely lost and required rebuilding. The head shield tiles were extremely fragile on the shuttle.
It was never a fully reusable design, just more reusable than before.
SpaceX plans to have no parts that are lost each flight and is working to make the tiles mostly standardized and less sensitive to faults.
trompetenaccoun
10 months ago
Are they going to replace all the tiles before it can relaunch? And what about the engine nozzles? They must be taking quite the beating.
No doubt SpaceX has very smart people working on this and I'm not an expert in material science, but I just find it hard to believe that same day turnaround could be possible. If true, that would really make us a confirmed space faring civilization. We could actually start colonizing Mars.
wongarsu
10 months ago
The heat tiles are reusable, just like the Shuttle's. They are basically just a material that insulates very well, instead of a traditional ablative heat shield that burns away. With the space shuttle they ended up spending a lot of time inspecting each tile for damage and replacing cracked tiles. SpaceX has a modern iteration of the same material, hopefully with fewer cracks.
Other factors that work in SpaceX's favor are 1) that most launches will be unmanned, meaning they can take bigger risks than the Space Shuttle program; 2) that the steel body of Starship can handle higher temperatures than the Space Shuttle's aluminum, so a compromised heat shield is more tolerable; 3) for now they have a secondary ablative heat shield below the tiles (that does have to be replaced when it gets used, but that should only happen when tiles fall off)
dr_orpheus
10 months ago
For context on JumpCrisscross's comment in this thread: the 4 hours is between two separate launches on two separate rockets. This is absolutely not refurbishing and launching the same rocket 4 hours apart.
Seems like the actual record for turning around the same booster is 21 days, which is still quite impressive.
https://www.teslarati.com/spacex-falcon-9-new-booster-turnar...
JumpCrisscross
10 months ago
> what about the engine nozzles?
Falcon 9 has reflown in just over 4 hours [1]. (EDIT: Operational turnaround. Nozzles have been turned around allegedly without refurb in 3 weeks.)
[1] https://en.m.wikipedia.org/wiki/List_of_Falcon_9_and_Falcon_...
ceejayoz
10 months ago
No, those were separate craft, on opposite sides of the country. It demonstrates an ability to manage multiple missions at once, but not rapid booster turnaround.
https://www.space.com/spacex-starlink-launch-doubleheader-ju...
They've since done two flights in about an hour with https://spaceflightnow.com/tag/starlink-9-5/ and https://spaceflightnow.com/tag/starlink-8-10/
I think the first-stage turnaround record is something like two weeks.
https://en.wikipedia.org/wiki/List_of_Falcon_9_first-stage_b...
> B1062 booster holds the record for fastest turnaround at 21 days. It launched on 8 April and again on 29 April 2022.
seadan83
10 months ago
Beware the dunning-kruger effect. There is a lot more to colonizing mars than reusable rockets. Just saying..
ceejayoz
10 months ago
Some of SpaceX's first stages are getting close to the individual Shuttles' launch counts, with substantially less turnaround time and cost than Shuttle ever had.
Starship has work to do, but it's hard to argue they're not at least on the right path.
marcusverus
10 months ago
SpaceX was able to re-fly a Falcon 9 in 3 weeks, and it was reported[0] that the refurb process only took 9 days. So they're well on their way.
It's also worth noting that Booster (the first stage), Starship (the second stage) and Raptor (the rocket engine) were all designed with the benefit of the above experience and with the goal of same-day reuse in mind. They know where all of the refurb time went and where the bottlenecks are.
I have no doubt that they can reduce the turnaround further, but the goal of same-day re-flight does seem mighty ambitious.
[0] https://www.teslarati.com/spacex-falcon-9-new-booster-turnar...
user
10 months ago
cwillu
10 months ago
Also, less cost in life.
soperj
10 months ago
With the Falcon 9 they're already at over 100 launches this year. It's multiple rockets, but the turn around is pretty quick and getting quicker every year. They're designing starship from the start with same day turnaround in mind. I wouldn't bet against it I guess.
LorenDB
10 months ago
For the Super Heavy booster, SpaceX is targeting a <1hr turnaround time. For the ship, it gets a bit more complex. Ships have to make complete orbits before returning, and generally they have to be loaded with cargo as well. Tanker Starships for lunar/Mars missions will probably have pretty quick turnaround given that fuel can be loaded on the pad; other ships will have significantly longer turnarounds.
modeless
10 months ago
It's a good question. The hurdle to clear for same-day reuse will be the heat shield. SpaceX hasn't yet demonstrated that Starship can reenter the atmosphere and remain fully intact. Doing it while sustaining near zero wear on the heat shield will be even harder. But I think it is not impossible, and I don't know of any other obvious blockers for same day reuse.
soperj
10 months ago
They'll likely reuse the booster on the same day well before the starship portion. No heat shield on the booster. Some starships will likely stay in space for a long time before returning.
thinkcontext
10 months ago
Musk has said they're aiming for hundreds of reuses for the booster and dozens for the ship.
WalterBright
10 months ago
Zero wear is not necessary. The tiles can be thicker than the minimum, and be reusable until they wear down to the minimum. Like the brake pads on your car.
BurningFrog
10 months ago
It's certainly looked fully intact when reaching ground.
When they manage to do the intended landing it should be pretty unharmed, but I'm sure it will take a while before same-day reuse is attempted.
modeless
10 months ago
One of the flaps burned through again. Not as bad as the first time. The hinge area seems like the hardest challenge.
bryanlarsen
10 months ago
It was a flap hinge that burnt through, not the flap. They have a solution for block 2 which we'll likely see in test 7 -- move the flap slightly further back so that the hinge isn't in direct flow.
dylan604
10 months ago
Is this a bit of over engineering? How much is drag reduced during liftoff by having the flaps folded?
modeless
10 months ago
The reason the flaps move is to provide attitude and speed control during reentry. Like a skydiver spreading their arms and legs.
dylan604
10 months ago
oh, you mean like actual flaps of pretty much any aircraft. doh! i was thinking it was like the folding of the wings for planes on an aircraft carrier. sometimes my brain, boy, i don't know
YetAnotherNick
10 months ago
Even if they can reuse the booster, it would be huge.
fragmede
10 months ago
The previous flight was October 13, 2024, so while I can't speak to every day, one month turnaround is a reality.
nexus6
10 months ago
Is there such a need for a heavy launch rocket to launch routinely?
modeless
10 months ago
SpaceX already launches multiple times per month just to maintain Starlink. That will be much cheaper with Starship while enabling larger and more capable satellites. In fact, it's likely that one of the reasons SpaceX built Starlink is to create their own customer (and spur competitors) to plausibly use a significant fraction of Starship's capabilities. None existed at the time.
In the near term the biggest reason to do multiple launches in a day will be orbital refueling. This is required for sending much, much larger payloads to the Moon and Mars. It will require on the order of 10 launches to fuel up one moon lander in orbit, and obviously doing that as quickly as possible will be beneficial. NASA has already committed to this plan for Artemis.
dmurray
10 months ago
> It will require on the order of 10 launches to fuel up one moon lander in orbit
Require, or just make comfortable? Saturn V had the lift capacity of "only" a couple of Falcon Heavies, but was enough to carry astronauts, a car, a lunar lander with enough fuel to take off, and a command module.
modeless
10 months ago
We're not trying to do Apollo again. That would be easier, but we want to build a base this time. For that we need to send a lot more mass and it needs a lot more fuel.
thinkcontext
10 months ago
It's necessary because the Starship upper stage is so heavy. With a non reusable upper stage Starship's capacity would be enormous.
dmurray
10 months ago
Is that true? SpaceX [0] gives the capacity as 150t reusable or 250t expendable, which is significant, but not enough to make one "enormous".
If you really got order-of-magnitude gains from an expendable upper stage, it wouldn't be that exciting to have reusable rockets (which are more complex and still only fly one order of magnitude more times) in the first place.
DylanSp
10 months ago
If the upper stage wasn't designed to be reusable, it'd probably have a lot less structural dry mass - no heat shield, no fins, possibly different geometry (depending on how much volume they wanted). It might also be possible to drop the sea-level Raptor engines and just use the more efficient vacuum Raptors. I don't think you'd get an order-of-magnitude difference, but it'd be significant, especially for higher-energy trajectories than LEO.
thinkcontext
10 months ago
I don't understand why they don't make such an upper stage. It would allow them to refine the booster design and catch logistics while also launching payloads.
modeless
10 months ago
They are making an upper stage with no fins or heat shield. It's called HLS. But they don't need it just to launch payloads to orbit. Starship has such a bonkers huge payload capacity already that it's plenty for now. Nobody is asking for more yet. Testing Starship reentry is super important too, so it makes sense to do it on every launch until it's perfected.
DylanSp
10 months ago
My guess would be that it would take too much extra design work. Making the current upper stage reusable is necessary for the HLS contract anyways, and they've got a lot of work to do already on refining the heat shield & fin protection, enabling landing, and working on propellant transfer.
SAI_Peregrinus
10 months ago
Also because of the Lunar Gateway part of the plan. That pretty much just serves to waste fuel and funnel taxpayer money to the companies funding several congressmembers' election campaigns.
fernandopj
10 months ago
Require. I answered that in this same subtopic.
fernandopj
10 months ago
It's a mandate for the next Artemis Mission. [1]
The HLS (Spaceship) will need many refuels at orbit in order to get to the Moon and back. That means at least a dozen of fully-loaded Heavy launches to LEO just so each one of them can load a bit of fuel into HLS. The fuel in orbit can't sit idle for too long, or it deteriorates; I haven't found a limit on days for that, but a week-long launch window is considered a dealbreaker, we're talking a dozen Heavy launches in a week.
It's either a short launch window, or at least 6 Starships built and launched twice in ~10 days. Don't count out on SpaceX building 12 Heavy Starships just for that Artemis mission.
inglor_cz
10 months ago
Needs tend to develop once the means are there.
200 years ago, there was no need to use electricity. 100 years ago, there was no need to use a programming language. 30 years ago, there was no need for gigabit wireless Internet.
TeMPOraL
10 months ago
Or perhaps earlier and closer to the heart of USA's citizens, 300 years ago, there was no need for rail lines and trains.
Animats
10 months ago
> Needs tend to develop once the means are there.
Counterexample: space stations. We've had small manned space stations for decades now, but no real application for them. They're national prestige items only.
rodiger
10 months ago
Not true! The ISS has functioned as an outpost for science- 3,000+ experiments and counting
https://www.nasa.gov/missions/station/five-space-station-res...
mrguyorama
10 months ago
And most importantly for anyone who cares about space the way Elon claims to: The ISS has done pretty much all the research we have on how humans survive in space.
Animats
10 months ago
The hazards of living in zero-G were understood at the end of the Mir era.
pixl97
10 months ago
Because launch cost is expensive. There are a lot of interesting things we can develop in zero gravity if the cost per pound was cheap.
seadan83
10 months ago
This feels like tautological reasoning. Since you said, "tend" - are there any counter examples that you can think of?
inglor_cz
10 months ago
Some marginal ones.
We have the means to build pyramids or moa statues (Easter Island-style) much more quickly and efficiently that the ancients did, but we don't feel the need anymore.
JacobThreeThree
10 months ago
Nobody will ever need more than 640k of RAM.
soperj
10 months ago
If satellites don't have to worry as much about weight constraints they can be made cheaper and quicker. Space missions can become more routine.
stetrain
10 months ago
If we want to establish long term bases on the Moon or Mars then yes, you need not only to send crew and habitation modules but ongoing supplies and equipment.
Other use cases include launching and maintaining satellite constellations (Starling / Starshield), and launching singular large payloads like space telescopes.
Even for smaller payloads, having both the first and second stages be reusable will reduce launch costs.
dwaltrip
10 months ago
Yes, to do anything at all in the rest of the universe.
We are insatiably curious explorers. The cosmos calls to us. Many are willing to do anything they can to answer that call.
edm0nd
10 months ago
Yes, obviously.
It takes a heavy launch rocket to launch heavier things into space or missions, refueling, and to goto other planets.
childintime
10 months ago
Think about it, Starship enables a new era of military dominance in space. Military stuff is notoriously heavy.
Besides, Elon is the first to go after supervillain territory.
user
10 months ago
irthomasthomas
10 months ago
He's already spent the $3bn funding that was supposed to deliver the rocket to the moon and back.
panick21_
10 months ago
That is totally false, but you are not the first person I have heard spread this roomer.
You can go to the official govenrment website and look at the contract, it tells you exactly how much has been paid out and how much has not been. The money is getting out as SpaceX hits development milestones.
I don't remember, exactly but about 2.x billion $ were paid out so far. The money is spread over 40ish milestones. And they have done like 25 or so by now.
To get the full pay out, they will be required to land on the moon and take off again. Those are likely the last couple milestones.
vojtapol
10 months ago
That's just straight up not true. The $3bn were never meant to fund the entire project in the way you imply.
7e
10 months ago
I think the economics of space are are much more likely to be transformed by something like https://www.longshotspace.com/. Rockets are complex, still costly, and polluting.
modeless
10 months ago
The problem with space guns is you can't just yeet rocks into orbit. Any orbit that starts at the surface returns to the surface. So you still need a disposable rocket and avionics and fuel in every payload to change the orbit once out of the atmosphere. Only now the rocket needs to survive being literally shot out of a gun and then traveling at orbital velocity in atmosphere. That puts a pretty high floor on the cost per shot.
dr_orpheus
10 months ago
If you want to look at someone that is further along on a concept like this you can look at SpinLaunch. Exactly what it sounds like with a gigantic centrifuge to spin and throw things really fast. But they are still throwing a small two-stage rocket.
7e
10 months ago
I think a reusable orbital tug which rendezvous with payloads is the play here. The tug would refuel from some of the gun-launched payloads.
modeless
10 months ago
I think it would probably have to refuel with every payload. Changing orbits that fast isn't cheap. It would be cool to see an analysis of this, I don't know if it would really make sense. I've seen some interviews with the space gun guys but unfortunately nobody really pressed them on this issue and they didn't mention any plans for space tugs.
gridspy
10 months ago
Plus, your payload needs to be gun compatible. Not gonna put people in there.
WalterBright
10 months ago
Well, in WW2 we did manage to put working radar in artillery shells.
itishappy
10 months ago
With vacuum tubes, no less!
7e
10 months ago
Space is for robots.
gridspy
10 months ago
While mass to orbit costs as much as it does now, sure. However later on it's gonna be great to have humans closer to the working robots to reduce the round-trip latency. They could also perform tasks robots are not suited for.
Consider operators living on Mars and operating drones near their habitat each day. It would be like modern day drone operators and robot assisted surgery. Like remote operators of mega-trucks today.
Those robots could interact with the operators - driving into a "garage" that can be pressurized for maintenance, upgrades or science.
StarShip promises to reduce the cost of mass to orbit, making larger and more complex scientific, industrial and habitat options feasible.
hadlock
10 months ago
The big thing is that it dramatically reduces the cost of shipping things into space. Previously it was difficult to ship anything much larger than a compact car in to orbit. Now you can ship half of a basketball court into orbit, including all the vertical space.
Until very very recently the roughly bus sized ISS modules were the largest habitable spaces we could ship to orbit (although Skylab in the 70s were basically repurposed Saturn V fuel tanks and also big) so now it's possible/probable we can ship 20 people to space, and have moderately comfortable accommodations for them.
We can also ship mining equipment and substancially more supplies to the moon. Or mars. We went from using pack goats to 18 wheelers to ship stuff in space. The pack goat can ship a handful of hand made silk scarves and Faberge eggs over the Himalayas, but the 18 wheeler can deliver everything from socks and tshirts to cell phones and big screen tvs and trucks and lawn mowers. This really opens up space to more than the highest, most bleeding edge science and we might actually see more than 100 humans in space at the same time, in our lifetimes.
tedsanders
10 months ago
If you go to space, 90% of the cost is the rocket (depending on your accounting). If rockets can be made reusable, then you can drop costs by 90%, to first order. Cheaper rockets means cheaper satellites for internet and sensors and stuff.
gridspy
10 months ago
Also, as mass to orbit gets cheaper you can build your payload more cheaply. Many compromises in complexity and material cost are made to minimize payload mass - we'll be able to launch cheap and heavy satellites and probes into orbit instead.
WalterBright
10 months ago
Cheaper rockets also mean cheaper payload in that the payloads don't have to be engineered to such high standards of reliability.
dylan604
10 months ago
>(depending on your accounting).
some of the best weasel words ever laid to print. Enron accounting vs PWC vs your mom using Quickbooks for her side hustle type of depending?
stetrain
10 months ago
It's a rocket in the same ballpark as the Saturn V but where the two stages can both be recovered and re-used.
SpaceX has demonstrated being able to fly the same rocket stage dozens of times with minimal refurbishment with their Falcon 9 family of rockets, but they still have to build and discard the second stage of the Falcon 9 for each launch.
Starship scales that up in magnitude and adds second-stage reusability.
MostlyStable
10 months ago
This article [0] is a pretty good explainer for why Starship is such a big deal
[0] https://caseyhandmer.wordpress.com/2021/10/28/starship-is-st...
pfdietz
10 months ago
> Starship is designed to be able to launch bulk cargo into LEO in >100 T chunks for <$10m per launch,
So, for the cost of a single SLS launch ($4B), Starship would be able to put the mass of the battleship USS Texas into orbit.
If the cost is reduced to $1M/launch, it could put the mass of four Nimitz-class nuclear aircraft carriers into orbit.
Animats
10 months ago
That's very good. And it's from 2021. Since then:
- Starship is actually launching now
- Boeing's reputation and credibility are in tatters
- Trump won with heavy support from Musk.
Expect a new head of NASA who is pro-Musk, and a cancellation of the Senate Launch System.
On the other hand, it's not clear what a Moon base is good for. The ISS isn't very useful.
ChocolateGod
10 months ago
> it's not clear what a Moon base is good for
not letting China do it first
WalterBright
10 months ago
> We need a team of economists to rederive the relative elasticities of various design choices and boil them down to a new set of design heuristics for space system production oriented towards maximizing volume of production.
Great article, but that's not what economists do. It's more what cost accountants do.
cylinder714
10 months ago
Brilliant article, and I neglected to bookmark it earlier, thank you.
politician
10 months ago
Consider ocean-going freight transportation: the container ships and the containers, the port facilities and the cranes. Now imagine that you were able to witness the very first round-trip sailing of such a container ship between two newly constructed still-experimental-and-heretofore-unproven ports.
That'd be pretty cool right? The dawn of a new era in global trade.
This is that, for space. (Booster as container ship, Orbital vehicle as container, launch tower as literal crane, launch complex as port)
tialaramex
10 months ago
No. The ports were just expanding on an existing idea. I live in a port city, a thousand years ago middle ages people with much smaller boats used this same area to travel much shorter distances with fewer goods, today it has those cranes and a railway and moves inter-modal containers which have travelled from across the world, but it's just the same idea.
Why is there a port here? Because of the unusual tidal pattern? Deep water? No. People. The other reasons are reasons to put the port here maybe in particular rather than a few miles in either direction, but the people are why there's a port. In 1024 there were thousands of people, today perhaps closer to half a million depending on how you count.
There are no people on Luna, and no people on Mars. Visiting these barren rocks is like going up Everest.
This damp rock is where our species was born and it's where it will die. It's not much, but its ours, and there's nothing like it within any plausible travel distance.
politician
10 months ago
People congregate around water sources. They don't just gather anywhere and make it happen. Ports are where they are due to the location having the necessary resources to support a population servicing a useful(1) industry.
Similarly, moon or Mars bases will be where they are if the location has some useful(1) industry and sufficient resources to support a population servicing that industry.
(1) 'Useful' to them, and not necessarily to everyone everywhere all the time.
Ductapemaster
10 months ago
This is a great resource for why Starship is groundbreaking. So much so, it’s not even really comprehensive to the existing space-industrial complex.
https://caseyhandmer.wordpress.com/2021/10/28/starship-is-st...
soperj
10 months ago
Price decreases significantly when you can reuse. This rocket is the same size as the ones that brought the Apollo missions to the moon, but will cost significantly less because they don't have to build one every time they launch it.
ANewFormation
10 months ago
Cost. Ballparking from memory (because I'm on mobile) sending something to space on the Space Shuttle cost something like $40k/kg. The Falcon brought that down to 2500, and the Falcon Heavy down to just over $1k/kg.
So nearly two orders of magnitude cheaper, but you still can't really do anything too fun in space at $1k/kg. The goal with Starship (and its rapid reuse) is to bring costs down another couple of orders of magnitude to where we could eventually even see costs drop into the single digit per kg.
And at that point suddenly space becomes open to things that sound difficult to even fantasize about today, like colonizing Mars, taking suborbital flights to get from Texas to Hong Kong, or setting up industrial systems on the Moon, to say nothing of space tourism that doesn't start with the prerequisite of being a billionaire.
inglor_cz
10 months ago
Rockets that are easily reusable make spaceflight a lot more logistically feasible, which should translate to a massive drop in costs.
We are going to see massively increased space activity of all sorts. It is almost impossible to predict all consequences thereof.
llboston
10 months ago
Imagine if a round-trip flight from the US to Europe didn’t cost $500, but only $5, unbelievable, right? This is exactly what Starship will do to space travel. Many things we see in sci-fi, like lunar and Martian cities or orbital cruise ships, could soon become reality.
Personally, I can’t wait to see a massive, kilometer-wide telescope in space or nestled in a crater on the Moon. We might finally figure out dark matter, dark energy, anti-gravity.
deanCommie
10 months ago
See this is the kind of thing that's not helpful.
It's just an outlandish overly optimistic mishmash of different concepts.
Let's start with your analogy:
> Imagine if a round-trip flight from the US to Europe didn’t cost $500, but only $5, unbelievable, right?
If you mean to use this to explain that what today costs X will in the future cost 0.01X, you're probably right.
But a more accurate analogy is "Imagine if a round-trip flight from the US to Europe didn't cost $50,000,000, but only $500,000, unbelievable, right?"
Same ratios, but deeply different implications.
Today, the idea of setting up a continuously settled Mars colony - hell even a Moon colony - is unfeasibly expensive. It's ACHIEVABLE - we have the technology and the money - but it would cost an intolerable percentage of the GDP of the world to accomplish.
A 100x reduction in costs means that it becomes a fundable endeavour that countries like the US could still justify.
We're still talking about generations - maybe a century - away from someone being able to just pop over to Mars for a summer vacation, the way that a college student could to do today with an intercontinental flight.
> Many things we see in sci-fi, like lunar and Martian cities or orbital cruise ships, could soon become reality.
For a very generous definition of soon and for a highly implausible definition of what a "cruise ship" is - it'll never be as accessible to the average person as earth cruise ships. Not as long as you keep using rockets.
Regardless of reusability, there are realities of fixed FOSSIL FUEL costs associated with getting into gravity. They're not cheap, and they're not frivolous. If you want to be able get things into orbit as cheap as you're suggesting, you need to start investing in a space elevator, which noone is right now.
> Personally, I can’t wait to see a massive, kilometer-wide telescope in space
Cool, yeah, that's true, that becomes more available.
> or nestled in a crater on the Moon.
..why?
> We might finally figure out dark matter, dark energy, anti-gravity.
And the final cherry on the cake. Humanity becoming inter-planetary is important on a macro scale. And trying to go further and further into space will INCENTIVISE research into these concepts.
But in no way does getting to orbit cheaper make it easier to figure out any of these concepts. There's nothing we can do from Mars or on the way to Mars in terms of this science that we can't do from Earth.
TeMPOraL
10 months ago
> A 100x reduction in costs means that it becomes a fundable endeavour that countries like the US could still justify.
Don't forget the dynamics. Costs of all such projects drop further when early steps become affordable. Like, with 100x reduction on the sticker price, US might feel Mars colony is still too expensive a project, but 100x reduction on trying out some adjacent space tech may just be in range of NASA budget or some private interest. Steps get made, iterated on, making next steps cheaper and more likely to happen. Derisking compounds.
I do agree it'd still be a decades long project at least (with a settlement established early on; it's the tail end that will drag on).
>> or nestled in a crater on the Moon.
>..why?
Having some gravity and hard surface to build on simplifies engineering challenges, particularly on large scales, as in free space, tension becomes a big issue. And, perhaps more importantly, the Moon would shield the telescope from all the electromagnetic noise produced on Earth, and also by the Sun.
SAI_Peregrinus
10 months ago
Shielding from the sun only happens when it's dark on that side of the moon. So half the month, effectively. But shielding from Earth can be constant, thanks to tidal locking. Particularly nice for really big radio telescopes.
TeMPOraL
10 months ago
> So half the month, effectively.
A little less, if nestled in the crater as the quoted idea would have it.
ceejayoz
10 months ago
Even better: use one of the deep lava tube pits. https://futurism.com/nasa-holes-moon-comfortable-temperature
Dylan16807
10 months ago
> Regardless of reusability, there are realities of fixed FOSSIL FUEL costs associated with getting into gravity. They're not cheap, and they're not frivolous.
I hope you don't mean hydrogen and methane. Those are downright easy to make without fossil fuels. And kerosene isn't all that hard.
shirro
10 months ago
Honestly of very little significance to the typical individual. It isn't going to pay my bills or provide for my kids. It does nothing for people suffering war and genocide. Nothing for poverty, access to health care and education. Nothing for the biggest threats facing our civilization.
It is still a remarkable technical achievement and I think the people who have designed and built these systems deserve some celebration for their accomplishments. It has the potential to lower costs and increase the capacity for greater commercialization, militarization and exploration of space.
I think the extent you see that as something positive is subject to your faith in humanity. I tend to think technologies connection to social progress is a three steps forward, two steps back sort of thing. We have certainly made gains in my lifetime but we could have gone a lot further.
WalterBright
10 months ago
Your posts reminds me of the building of the first transcontinental railroad. It had many fits and starts, and people thought it would take decades to pay off.
But just as soon as it was completed, it changed everything overnight.
This is what Musk is doing.
mhh__
10 months ago
The payload is so big it will be a pretty dramatic phase transition for almost everything space related, assuming theres not some horrible flaw hidden away somewhere.
Quite bizarre how some people genuinely think he's just some guy who allocates capital. Or rich dad or whatever. I guess his dad was probably rich but that's clearly not enough.
shirro
10 months ago
SpaceX are not building a transcontinental railroad. I think that is a false equivalence.
An operational Starship should be very impactful on space exploration but it won't be shipping cattle back from Mars. There is a difficult to discern line between reality and bullshit that Musk likes to blur. The "vision" stuff is there to hype up the troops and investors. You don't need to swallow it to appreciate the technology. It isn't narrow minded to reject stuff that just doesn't add up. The scales, time, distance, energy, investment involved in space colonization are incomparable to settling the USA. The railroad was bringing people to a land that was already successfully settled by neolithic peoples tens of thousands of years earlier.
WalterBright
10 months ago
SpaceX is building a railroad to the solar system. It will change everything, and quickly.
> The railroad was bringing people to a land that was already successfully settled by neolithic peoples tens of thousands of years earlier.
That's what people thought before the railroad was completed.
See "Nothing Like It In the World" by Stephen Ambrose:
https://www.amazon.com/Nothing-Like-World-Transcontinental-1...
caekislove
10 months ago
Yeah we should call this whole thing off and spend the money on solving poverty! /s
adamm255
10 months ago
I’m with you. As landing the thing means nothing if you can’t get payloads to the destination. To get this thing to the moon would need like 20 refuelling flights to meet it on the way.
cwillu
10 months ago
Hence the plan to have ten or so launches to refuel the top stage while it's still in orbit, a place that notably _is_ halfway to the moon's surface + the return trip to the earth.
https://upload.wikimedia.org/wikipedia/commons/9/93/Solar_sy...
dylan604
10 months ago
this just reads as very strange. "meet it on the way"? it's not like they can place these in an orbit that they can just pull up and stop to refuel like a highway gas station. the refueling "pod" would need to be moving at the same speed as the ship.
irthomasthomas
10 months ago
[flagged]
bryanlarsen
10 months ago
That $3B is milestone based, they don't get it until they deliver on the milestones. AFAICT, they've only hit a single milestone on the plan, and have received <$100M of the $3B to date.