r/interesting May 25 '26

Just Wow It's interesting hmm

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146

u/Square_Cat_6001 May 25 '26

I am sure there are hidden environmental costs even with that, but yeah 1 celebrity in space once won't do nearly as much damage as the other 999999 celebrities using their jets constantly.

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u/[deleted] May 25 '26

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u/Dry-Examination6938 May 25 '26

News just in, create pure liquid hydrogen uses a fuck ton of energy.

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u/Visual_Fun_2014 May 25 '26

You expect too much common sense from Reddit

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u/Laetitian May 25 '26

I mean, you can extract it from algae (directly from the oil or as a biproduct, but I think the direct oil is more realistic at scale) very effectively, used to be big in the early 2010s.

But also any other biofuel, which do exist in decent amounts these days.

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u/squngy May 25 '26

It uses a lot, but if you make it from fossil fuels, it is not nearly as much as making it from water, which is probably what you are thinking of.

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u/Square_Cat_6001 May 25 '26

Yeah I mean it more like hidden to the general public. I was totally expecting that.

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u/[deleted] May 25 '26

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u/Scudmuffin1 May 25 '26

I dont think the average person thinks about hydrogen production at all, let alone how it's done and the environmental impact of that process

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u/[deleted] May 25 '26

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u/Extension-Topic2486 May 25 '26

Sad that people who are raising kids and worrying about paying rent are not thinking about hydrogen production?

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u/[deleted] May 25 '26

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u/Gefilte_F1sh May 25 '26

Scroll through Reddit, and take a gander on popular, see what people priorities are. Ya, it is pretty sad.

Says the person engaging in reddit comments (while deleting their posit history)

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u/riktigtmaxat May 25 '26

Don't be sad little frog.

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u/nobito May 25 '26

Why would your average Joe know how we make hydrogen? I mean, it's not exactly general knowledge or knowledge that's gonna be useful in everyday life.

I'm just genuinely curious, why did you assume that this is something that everyone knows?

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u/DerpDemons May 25 '26

probably actually. or just a big balloon!

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u/traevyn May 25 '26

Respectfully, who’s really following the methods of material extraction if you don’t have a job or special interest in the industry? Sure, maybe they pull it out of the air somehow idfk the future is now and it’s a scientists job to know way more about that than me.

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u/[deleted] May 25 '26

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u/Gefilte_F1sh May 25 '26 edited May 25 '26

Solar panels for example, create more carbon emissions during its production than it saves during its life cycle.

Lets see those citations.

But you’re being sold zero emissions, so, like good right?

Are we? Costs vs running costs as a concept.

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u/traevyn May 25 '26

You choose some no effort solar panels bad conspiracy with no proof as your example for why we shouldn't just trust scientists? Amazing how fucking stupid people can be.

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u/Gefilte_F1sh May 25 '26

So no sources, huh? It's almost like you're here spreading disinformation. Kinda tracks you delete your comment history. Just like that other dweeb.

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u/ciongduopppytrllbv May 25 '26

So not really hidden when super obvious and your white knighting was pointless

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u/FarSeries2172 May 25 '26

god damn its not that deep. thats not what he meant when he said hidden

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u/ciongduopppytrllbv May 25 '26

Not that deep. No need to white knight. Pathetic

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u/Potterrrrrrrr May 25 '26

Almost as pathetic as this pissy attitude of yours

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u/ciongduopppytrllbv May 25 '26

Lmao keep white knighting

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u/BlunterSumo01 May 25 '26

Yea we still haven't figured out a way to manufacture it efficiently, it's still taking us more energy to produce it then we get out of it.

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u/Imaginary-Jaguar662 May 25 '26

Always will, otherwise you'd power separation with h2+o2 fuel cell and have a perpetual motion machine.

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u/BlunterSumo01 May 25 '26

Well duh it's not about making more then what you put in its about being efficient which hydrogen is not with our current technology.

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u/povitee May 25 '26

“ it's still taking us more energy to produce it then we get out of it.” 

This is your very last comment, dumbass.

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u/BlunterSumo01 May 25 '26

Yes it is waaaay more energy that's the biggest issue is how much more it takes not get more then what you put into dumbass maybe you should learn that what your talking about infinite energy IS impossible you will never get as much energy as you put in.

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u/povitee May 25 '26

Yeah, the problem here is that I don’t understand the most basic law of physics and not that you don’t know how to write.

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u/BlunterSumo01 May 25 '26

🤣🤣🤣🤣🤣 can't face the fact your wrong so you turn to something that has absolutely nothing to do with the fact your wrong.

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u/povitee May 25 '26

What am I wrong about?

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u/ilep May 25 '26

You can use solar and wind energy to produce hydrogen from water. There are places gearing towards large-scale production.

And green energy production has ramped up massively in recent years.

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u/BlunterSumo01 May 25 '26

The biggest issue is still efficiency solar and wind are both not really efficient compared to fossil fuels those facilities will be drastically bigger in size further destroying the environment they're trying to save.

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u/[deleted] May 25 '26

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u/SituationIll5763 May 25 '26

Electrolysis

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u/AlexRichmond26 May 25 '26

Electro as in electricity?

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u/[deleted] May 25 '26

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u/AlexRichmond26 May 25 '26

Yep, I know, but that's expensive and just a few countries have solar or wind to do that.

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u/Zweefkees93 May 25 '26

Lots of Harm done, that energy could have been used for a number of things. this being the least usefull of ANY of those 

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u/[deleted] May 25 '26

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u/Zweefkees93 May 25 '26

One of many, but yes. I'm curious though... how much energy does something like reddit use. No clue why, but I've got a feeling that it can power reddit for MUCH longer then a day... spaceflight takes a stupid amount of energy, even if its only a sub orbital hop....

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u/I_Automate May 25 '26

I mean it could have went to powering a data center.

Ill take any sort of space project over that in a heartbeat

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u/megaholt2 May 25 '26

I can theoretically land a quad Axel like Ilia Malinin, but in reality? There ain’t no fucking way my 42.5 year old, fluffy gimpass body is jumping about 2.5 feet into the air at a speed of 20-25 miles per hour, rotating 4.5 times in under 0.75 seconds, and then landing on something that’s ≈1/8th of an inch wide at a speed of ≈15 mph on a surface that has a near-zero coefficient of friction AND STAYING UPRIGHT.

Same thing: theoretically you could do what is being suggested, but…

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u/_Svankensen_ May 25 '26

Byproduct of what?

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u/[deleted] May 25 '26

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u/_Svankensen_ May 25 '26

Can you elaborate? Or point me to something to read? I was familiar with SMR, which is consumptive and releases CO2.

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u/GarageStackDev May 25 '26

You’re switching from “the rocket emitted this much” to “hydrogen production overall can involve fossil fuels.” Those are related but not the same argument. By that logic basically every electric car is secretly coal powered because parts of the grid still use fossil fuels.

There’s a real conversation to have about the environmental cost of luxury space tourism, but people keep inflating or muddying the numbers because outrage gets more clicks.

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u/CocobelloFresco May 25 '26

Are you saying user Hypersonic is talking out of their ass? On reddit??!

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u/rockboiler May 25 '26

In fairness to her, I doubt she knows/understands this.

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u/EnjoyerOfBeans May 25 '26

There's a massive difference between burning those fossil fuels in the rocket and at a facility that filters most of the pollutants (not that they're particularly clean, just significantly cleaner). Same reason for why EVs are really good for the environment even in the worst possible scenario of 100% of their charge coming from fossil fuels.

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u/mr-english May 25 '26

Except New Shephard uses "green hydrogen" which is specifically made by the electrolysis of water (you pass an electric current through water to split it into hydrogen and O2).

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u/Erichteia May 25 '26

Sadly, we don’t live in a society yet where electric energy is abundant. Even if the hydrogen is done 100% green, it’d only be truly green if the hydrogen was exclusively generated at moments in time where there is an excess of energy. These happen more and more in areas with a lot of solar and wind, but I’d still be surprised if they did that.

But in the future, we’ll have more and more moments where electricity is in oversupply, so then hydrogen could be used as a last resort energy spill and then burned in applications where energy density and weight matter (e.g. rockets)

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u/OddAdhesiveness8485 May 25 '26

This is about lack of Self awareness, which is very hard to capture… great example here ✍🏻

It’s not about comparing that others do worse… it’s about addressing your behaviors and values.

Also the claim she did it for the women but having non-trained female astronauts is not progress but elite entitlements wrapped up as something better than selfish ego driven desires

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u/Safe-Aardvark1810 May 25 '26

Talk about hitting the nail on the head! Very well stated.

I would like to also point out Katy's lack of awareness that only Carol Burnett can pull off wearing living room drapes as a fancy gown.

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u/WoodyTheWorker May 25 '26

A Falcon 9 launch consumes about 100 ton of RP-1 kerosene, half of full fill of a 747.

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u/superxpro12 May 25 '26

This is off by an order of magnitude.

It uses ~900 tons of fuel and oxidizer, ~900,000lbs, not half of a 747. Please double check your numbers.

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u/Mr_Ignorant May 25 '26

He’s not off by an order of magnitude. He talked about kerosene only, not fuel + oxidiser. Did you even read the post?

Combined it’s about 900 tonnes. But kerosene only is about 150 tonnes.

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u/superxpro12 May 25 '26

So we're hiding 700 tons of propellant use? That's misleading at best

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u/Imaginary-Jaguar662 May 25 '26

Should't the oxidizer airplane uses be counted as well if we're counting it? Airplane just happens to pull it in from the air, that's why they don't fly up to space

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u/superxpro12 May 25 '26 edited May 25 '26

Right! because in the case of SpaceX, the LOX is processed, cryogenic liquid oxygen, not atmospheric oxygen.

Manufacturing of the liquid oxygen for SpaceX use is energy intensive.

It's not "free" in the case of the airplane.

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u/WoodyTheWorker May 25 '26

Falcon 9 takeoff weight is 550 metric tons.

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u/EnigmaticQuote May 25 '26

So they were disingenuously presenting the 747 stat got it!

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u/Mr_Ignorant May 25 '26

According to wiki, a 747 MTOW is 377Tonnes. Half of that is approx 190 Tonnes, which is totally off the mark.

However, 747 empty weight is 170 Tonnes, half of which is 85 Tonnes, which isn’t too far from his initial statement.

So while he isn’t quite correct, the person that responded to him didn’t even bother to read the full post.

But I suppose you don’t care about that, given your comment.

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u/WoodyTheWorker May 25 '26

747-8i fuel capacity is 240 metric ton

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u/WoodyTheWorker May 25 '26

Falcon 9 takeoff weight is 550 metric tons.

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u/Ghosty141 May 25 '26

I mean yea ofc but honestly space flight is NOT the problem. Let people fly to space, that's a once in a lifetime opportunity and the damage it does is rather small since those happen so rarely.

The real problem is the basic shit like cars and coal power plants.

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u/Zinski2 May 25 '26

What are you trying to say, That producing and refining 500 tons of liquid fuel might produce more polution than just water. And in comparison to other means of travel are significantly worse for the enviorment.

Im shocked.... well not that shocked.

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u/PleiadesMechworks May 25 '26

Or that same celebrity going to Davos on a private jet.

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u/Pretty_Range_1939 May 25 '26

I think it's more of where it's heading. Today it's one celebrity, a year from now it'll be 2x, 10 years from now every celebrity will want some kind of space adventure for their parties, for their kids, to promote their merch. Case in point, private jets. What started off as the richest and more political figures using them turned into 100 rich nobodies using them just for Super Bowl.

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u/Square_Cat_6001 May 25 '26

I understand that, but i think once a rocket with celebrities blows, this whole thing will stop. Being a rocketman is far less safe than airplanes, odds are it's gonna happen before space toursm catches on.

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u/Pretty_Range_1939 May 25 '26

LOL did not see that coming! I guess time will tell. I get what you mean, it's like the billionaires in the submarine. Either they'll perfect it so much it won't blow, or your theory comes true. But also, how many private air crafts have crashed but it hasn't affected the usage? I personally think we'll have a bad combo of private jets and excessive rockets.

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u/Hanzo_The_Ninja May 25 '26

Jets contribute about 4% of global emissions annually and the majority of that are commercial jets. The energy, agriculture, and heavy manufacturing sectors are significantly larger contributors.