Terraforming Mars in Just 3 Simple Steps!

[@hupekyser]

Sarcasm is strong on this one. Lol

[@reasonerenlightened2456]

And the fallacy of reasoning was strong too. (The way to terraform Mars is to land enough spaceships to cover the surface of mars. Each spaceship will have to generate 3 times more power/energy than the energy required to maintain life inside the spaceship. The solution is scalable.)

[@oldnubbins8060]

I like the added dash if optimism. Call it "sarcastimism".

[@peternakitch4167]

Easy peasey, lemon squeezy. Simple steps? Ha. We should be much more careful with this planet.

[@CAThompson]

@@peternakitch4167 Mars will be a lot less forgiving.

[@sbkarajan]

@@oldnubbins8060 Go to the moon first people. You haven't even set a foot or have a base there, just 3 day trip. We see the moon almost every day, and never even capable of going "BACK(???)"!!!! Seriously!!!! And then Mars? LOLOLOL!!!! You gotta be kidding. Wake the hell up people!!!!!!!!!!

[@spacemanspiff3052]

My new hero! Highly intelligent, dry sarcasm, clarity in communications, and a passion for science. Thanks for sharing with us!!!

[@paulosilvafilho5222]

I love how these three simple tasks are really simple, achievable and, possibly, inexpensive!

[@catherinev9847]

mmmm terraforming mars, very convenient & efficient

[@duyataksis5210]

Possibly inexpensive? Certainly inexpensive!

[@mayanksoni9046]

Atleast musk is trying, unlike sabine who have left her day job as theoretical physicist and devoted her rest of life in criticizing others on her youtube channel.🤣🤣

[@Jagar_Tharn]

@@mayanksoni9046 wow wtf lol I think you need less salt in your diet

[@kristoffer3000]

@@mayanksoni9046 He's only trying to get money from idiots like yourself, nothing else.

[@VengerDFW]

"I hear fusion power is almost there..." this is the maximum snark I return for, every time...

[@thgeremilrivera-thorsen9556]

"Fusion is the energy source of the future, and it always will be."

[@robbyr9286]

@@thgeremilrivera-thorsen9556 Ouch.

[@theFLCLguy]

According to my text book from the 80s it's only 15 years away. But really, it's not going to be commercially viable for closer to 100 years.

[@peterbelanger4094]

As far as I understand, Even what is "almost there" is really more of an electricity multiplier than a generator. ITER requires a lot of power input from the grid to just 'start it up' until it (supposedly) outputs more than what is input.

[@mastpg]

Fusion...the Dippin Dots of high physics, world changing tech

[@SorinNicu]

Love Sabine's dark humor and sarcasm. "We can't breath carbon dioxide. I mean, we can, but not for very long." I don't care who you are, that right there is hilarious!

[@medexamtoolscom]

Well it's not something I haven't heard before. Like there was a video about the dangers of mercury and the guy in the video said "of course you can't drink mercury" and the comment section was literally filled with people saying "I can drink anything I want bee ach. I'm not going to, but don't tell me what I can't do."

[@arturoeugster2377]

In windy weather we put on some warm clothes, no big deal in wearing a modestly pressurized suit to contain oxygen (partial pressure 200 mBar and some nitrogen), the contained gases will warm up from our heat, when we move, as all space suits the heat must be removed with a cooling system, not so on Mars, because of the low temperature outside. A thin insulation is all that is required, because the heat capacity of the atmosphere is very low, some 20 times lower, so low temperatures are NOT a problem, on the contrary, they help us keep cool. The smallest heater might be all we need at -60°C. The low gravity makes it easy to carry a light backpack (with the oxygen system and humidity removal absober) and do what on Earth would be called heavy lifting. Vegetation will do very well, because the ço2 content of Mars per m³ is al most 30 times higher, the 1.46 grams needed to be absorbed through the stomata for every gram of glucose the plant synthesises, will require far less water than needed on Earth.

[@samadams6487]

Isn't it good then that plants breathe carbon dioxide and give us oxygen. Gee what a nice idea. Works pretty well too.

[@samadams6487]

Yes I like her humor but she buys into the anthropogenic climate change which the far left is trying to use to get everybody to willingly give up their National sovereignty, Liberty and their money. It's the biggest hoax on mankind ever. But yes she does have an interesting sense of humor.

[@Delosian]

It is an old joke by Terry Pratchett: "All Fungi are edible. Some fungi are only edible once."

[@ryansilva9282]

I’ve been trying to explain to my wife, that your videos always have a bit of hidden humor sarcasm in them. You just got to wait for it, and understand what your listening too. Well, we didn’t have to wait for it in this one. This was a classic Sabine joke all the way thru. I love it. Keep up the good info!!!

[@Tletna]

I really appreciate how straight forward and optimistic Sabine is about turning Mars into Earth 2, I'm going to enjoy the lower gravity there. Finally, I'll be able to dunk.

[@Jay_Johnson]

Osteopenia and sunburn time.

[@ShadowTigerKing]

I had no idea there was a world record for stacking m&m's , you really do learn something new everyday.

[@MicraHakkinen]

Everything's a world record if you happen to be the first one to do it I suppose...

[@pstrap1311]

But did he actually use staples though?

[@tsmspace]

@@pstrap1311 she said stable-ing. stabilizing, basically

[@pstrap1311]

@@tsmspace oh, yeah, that does make more sense haha.

[@tsmspace]

@@pstrap1311 esl folks are always using stable instead of balance

[@collativelearning]

Love it. The over-optimism and over-confidence humans have had for over 60 years that we will soon be colonizing the solar system and the stars is a great source for comedy.

[@EaglePicking]

True, there is over confidence, but people said the same thing in the 1400's, only then it was about sailing ships and about other continents. Give it time. At some point it will all come together.

[@OMAR-vq3yb]

"I don't care for optimism or pessimism. F it let's get it done" -- Musk. There are the Sabine's of this world and then there are the Elon Musks.

[@strayorion2031]

@@EaglePicking except people didn't do it because they didn't know how much resources you would need to do that, and right now we know exactly what we need to colonize mars and unless and some miracle tecnology arises that cuts the necesary resources at half it's not feasible specially considering that keeping our society going is already killing the planet

[@Saitanen]

@@janos1945 nope. Elon is a joke that manipulates the crypto prices.

[@bearifiablepau2095]

it's a cover story for research in climate manipulation and the likes, while being widely accepted and even funded by the public. (although most of the funding comes from government agencies anyway) .

[@trevoraboussafy6900]

I didn’t realize terraforming would be so easy.

[@georgelionon9050]

Watch Kurzgesagt on Terraforming Venus very easy they only need a planet sized mirror in space ;)

[@arch1107]

well, the magnetic part was not that hard tbh, i already heard about other more exotic ways to achieve the same thing, this one sounds very hard but doable

[@adymode]

@@georgelionon9050 Excellent - focus Venus's shade mirror on Mars

[@entyropy3262]

We are actually really good at Terraforming, but terraforming towards MARS not towards a habitable Planet.

[@w__a__l__e]

yea its easy if you dont know how difficult it is

[@mojoneko8303]

That was almost evil. You have a wicked sense of humor, had me going for a couple of minutes. : ) Thanks for the video!

[@robertmiranda2444]

Whenever I want someone to tell me it can't be done I come to this channel, you never disappoint.

[@natemendsen1629]

I dont think she is saying that, she is saying there is ALOT more to do before we get there.

[@walterbushell7029]

Evidently it would be easier to terraform the Earth. Step 1:Resolved, humans are a destructive invasive species and hence will be restricted to Africa. Easy peasy.

[@williamarnold9744]

Our track record terraforming Earth has never made me think we should invest in terraforming as an export business.

[@tsamuel6224]

Earth should be easy. Day one we do world peace. Day two we do clean air. Day three we do clean water. Day four we do climate change. Day five even the wealthy will know we can't be stopped and we do poverty. Day six we party. Day seven we give thanks.

[@biggiesmol]

@@tsamuel6224 We can tax the rich corporations a mere 10 percent and poverty will no longer be a thing. And the rich will still be damn rich after that. 😲

[@idealfather3547]

Reverse terraforming.

[@seapirate7770]

@@biggiesmol no, there'll just be more poor after that and we already tax the rich from 15-55%, except most of the tax is on income which they can make it out to be zero by reinvesting or showing it as expenditure, even middle class do that. When we do make rich part with a good amount of their wealth and distribute it to the poor, we give incentive to poor to stay poor. Why work to uplift yourself when everything is handed to you.

[@denizhantutar1680]

@@seapirate7770 Yeah I'm pretty sure starving people are starving lack of incentives in form of starvation threats, unemployed people are unemployed because they should have accepted a not so humanly job among countless options that society provides, etc. Neoliberal economic analysis sounds more and more like a weird cult, organized around the prophecy that any humanly act to make things better will make it even worse so we should obey our overlords and obvious political options whose all are in the cult but chose to obey harder if they think billionaires actually kidnap children to fuck and murder than not.

[@DigGil3]

Well, actually laying a superconductor around the equator of Mars sounds more feasible than other ideas I've seen before.

[@JelMain]

There's a negative feedback here, though: raising the ambient temperature loads the superconductor more.

[@Inkling777]

Given that the Earth's own magnetic field is decreasing, in a few centuries we may need to apply that technique here. The difficulty is that there's no way to circle our planet with a superconducting cable without crossing deep ocean bottoms.

[@phitsf5475]

@@JelMain The superconducting material is in a shielded temperature controlled environment.

[@richardhauer8391]

@@Inkling777 Wait, isn't the magnetic field much stronger close to the wire, decreasing with r^3? That would be very different from our current magnetic field. I thought the idea was to use a wire every few latitudes.

[@zenokarlsbach4292]

@@Inkling777 Do we have enough strontium for that?

[@bitskit3476]

Finally, someone with common sense. Every time someone brings up the idea of terraforming Mars, I've had to go out of my way to explain things like magnetospheres and solar radiation, the importance of an ionosphere to atmospheric pressure, pressure/temperature and the process of sublimation, etc. How about before attempting this absurd and insurmountable task, we try to terraform something that's already on Earth like the entire central region of north america or the Sahara desert.

[@CloudyMcCloud00]

Not a bad idea! Or how about terraforming some of the previously habitable parts of the planet that we've already ruined? 😀

[@SteveBakerIsHere]

That's certainly true - we could terraform the Sahara or the bottom of the Pacific Ocean for that matter - either would be easier than Mars...but it misses the point that Elon Musk makes - which is that we need a "backup" planet in the event that this one suffers a major disaster. A massive asteroid strike would take out your terraformed Sahara. A pandemic disease would (almost certainly) destroy it too. Super-volcanoes, global nuclear war...those things cannot be remediated without a backup planet that's isolated from those things. My concern though goes deeper than that. We know (for example) that dust storms in the Sahara result in soil nutrients being transported by high level winds into the Brazilian rain-forest. So if you mess around with the Sahara, you'll probably trash the rain-forests too. Any large-scale engineering on Earth is almost 100% certain to trash the place...and that's a lesson we should already have learned with the Ozone layer hole and Global warming. Earth cannot be tampered with on any large scale without inducing unexpected disasters. But Mars is already pretty much a disaster - so we can at least try to improve it to the point where a viable backup copy of our civilization can exist to restore it.

[@Cyberspine]

There are very few places on Earth that are truly empty of people, which is why terraforming said places will always be a political challenge, if not something doomed to fail. Mars has the privilege of being devoid of people, which is why it becomes purely an economic and engineering challenge, and thus much more solvable.

[@walterbushell7029]

@@CloudyMcCloud00 We could start by cleaning up the Superfund Sites or fix the railroads so that trains don't poison the areas that they pass through.

[@jimenycricket8431]

@@SteveBakerIsHere I'm in favour of a backup planet online myself. Even if the planet's screwed and uninhabitable, we just leave our machines running on solar, and we can carry on in the cloud, pretending to be alive. Actually, that's very similar to what I do now, come to think about it.

[@NathanRichHotpot]

So you're saying there's a chance!

[@seaoftranquility7228]

Hahaha.

[@Clystron426]

D&D 😂 Good one!

[@Sanelicv]

hahahahaa

[@Aufenthalt]

Nathan are you also here? I thought you were in China.

[@OhShiraz]

.... or easier to successfully terraform Mars... compared to reaching an agreement on Earth to avoid global warming??

[@epiendless1128]

3 simple steps. I kept thinking of Monty Python's "How to Rid the World of All Known Diseases": "Well, first of all become a doctor and discover a marvelous cure for something, and then, when the medical profession really starts to take notice of you, you can jolly well tell them what to do and make sure they get everything right so there'll never be any diseases ever again."

[@telectronix1368]

Is that an Erid Idle line?

[@333STONE]

Yet in reality your information would be discarded and possibly you to. Why? Because ......to be continued.

[@ferretappreciator]

@@333STONE oh no! Big pharma kill them before they could reveal the truth :( we will never get our part two

[@ronin47-ThorstenFrank]

Sadly, our current reality proofed that wrong. Especially in some areas of the mighties nation of Earth....

[@aleleeinnaleleeinn9110]

pretty close to Steve Martin's how to not pay taxes on a million dollars.

[@MaryAnnNytowl]

_~standing ovation~_ Oh, Sabine! You did such a _great_ job on this one! I love the level of sarcasm you maintained throughout. So very well done!

[@Azimus81]

Another reason to move to mars: Lower gravity makes more than 5 M&Ms stack possible!

[@dirkdriessen1133]

I am not sure thats true

[@Foolish188]

Have to send Elon Musk to Mars to test it.

[@Azimus81]

@@dirkdriessen1133 I am also not sure. Only an experiment can prove it.

[@dirkdriessen1133]

@@Azimus81 I think, its you need a balance of friction and gravity. As far as i know friction must be higher than gravity to build a stabil system. You can delete gravity on both sides of the equation, so its only a matter of the friction of M&Ms, ignring the problem of additional forces, caused by rotation and athmosphere

[@THX..1138]

@@dirkdriessen1133 Me neither, but I also feel we should run real world test to make sure😉

[@tomfillot5453]

"I mean we can breathe CO2, but not for long" Technically the truth.

[@tomkerruish2982]

The best kind of truth!

[@flyingpenandpaper6119]

Considering there's CO2 in Earth's atmosphere also, technically we can breathe CO2 for a very long time. Just at a very low concentration.

[@Jeffrey314159]

CO2 concentrations of just 3% of atmosphere are lethal within a few minutes

[@iaincaillte3356]

At that atmospheric pressure, it is Mars that is breathing us. 😵

[@tomkerruish2982]

@@iaincaillte3356 "On Mars, atmosphere breathe you! And I thought, 'What a planet!'" - Yaakov Smirnoff

[@mdavid1955]

Great video! Our tendency for "magical thinking" and delusion always haunts us.

[@MedlifeCrisis]

Wait, Elon *assured* me we’re moving to Mars any day now

[@thefaboo]

... and we'd just need to nuke it a couple times to make it good and balmy!

[@UnixLinuxWaffles]

Get back to work heart man.

[@PifflePrattle]

Who is Elon?

[@joaquinel]

follow this man!

[@antondovydaitis2261]

Musk's proposed Mars Colony is a sham. After killing and looting the supposed Colonists, they will be simulated in a virtual colony, using the communications lag time for chat bots and deep fake video.

[@aleleeinnaleleeinn9110]

You have NEVER sounded so optimistic. Sabine, you will never get to be head of the marketing department by providing all the facts. Guess I'll wait until the terraforming to be completed before I move to mars. Can you do a similar feasibility study on asteroid mining. Much of the media content makes it sound easy, but ... Thank you. Your videos are always informative and I do love your sense of humor.

[@tarmaque]

Asteroid mining is not going to be easy, but it will be less expensive than shipping all our building materials up from Earth. Will it happen soon? I doubt it. However _eventually_ it will be the most economical way to further our off-Earth infrastructure. At least it isn't impossible like some of the things people talk about. Like Space Elevators.

[@srobertweiser]

@@tarmaque I know, space elevators are a stupid idea. I think space escalators are the way to go.

[@tarmaque]

@@srobertweiser I know, right? I'll take one stairway to heaven please.

[@aleleeinnaleleeinn9110]

@@tarmaque Getting it back down will also be a pain. Crashing them like meteorites onto the target space body could be very ugly. Local sourcing will always be the cheapest solution.

[@aleleeinnaleleeinn9110]

@@maltemeyer3171 Thank you. I went and watched it. But there was a touch of Tongue in Cheek there too (not complaining). The Platinum asteroid is as common as unicorns. It's a big universe, but a concentration that high almost impossible. Sabines video on "where atoms come from" pretty much guarantees the heavy elements are rare everywhere. The only advantage I see to asteroid mining is that the universe has been kind enough to cut bite size pieces of matter.

[@linjean]

Yes, Yes, Yes! I now realize how easy it is to terraform Mars. Thanks Sabine for the enlightenment.

[@Nobody-Nowhere]

That McDonalds logo on terraforming. Key piece.

[@ArturdeSousaRocha]

Yep. Nothing says "We civilized this land" like the golden buttocks.

[@JohnDoe-zj6xf]

The symbol of Civilization and Freedom

[@ThatBoomerDude56]

@@JohnDoe-zj6xf We knew the Cold War was really over when McD's opened in Moscow.

[@ephraimgarrett4727]

Build a McDonald's and they will come. 😄

[@stclairstclair]

Ephraim Garrett, It has to be a Wendy's, I'm a Son Of Baconator addict...

[@nickfooz]

I like to call this video part of the series “Sabine Ruins Everything”

[@aleleeinnaleleeinn9110]

I grew up watching cartoons. What you don't know can't hurt you.

[@CAThompson]

YAAAY!

[@delcoelho8794]

Ahahahaha!!!! Good one!!! 👍

[@AnthonyElsom]

Only for idiots thinking terraforming can happen in a single lifetime..This will be possible over a period of thousands of years, with scientists studying circumstances on site.

[@CAThompson]

@@AnthonyElsom People believe what they think is credible, that doesn't make them idiots in this case, just misinformed.

[@subashchandra9557]

Hey sabine. For the magnetic field, there has been much research into "Miniature magnetic fields" to protect astronauts, and consensus seems to be that a solar powered miniature magnetic field generator placed at the Mars-Sun L1 Lagrange Point will be able to provide the same protection as earths magnetic field to Mars. Current simulations are saying that it will be able to almost completely negate the out gassing.

[@olafnilsen1641]

For a fictional account read the mars series by kim stanley Robinson wich discusses different processses in an educated way

[@wecare838]

@@olafnilsen1641 I think his judgement is little bit cluttered to put forward his marxist thinking. Plus he doesnt have a formal scientific education, his main game is to observe a alternative financing system work(in a new environment)

[@olafnilsen1641]

@@wecare838 dont have to throw out the marxist with the bath water. Good writing i am a arch capitalist myself but do enjoy his writing

[@olafnilsen1641]

And scientific background means less and less in the current environment unfortunately

[@wecare838]

@@olafnilsen1641 you mean the polarization of society?

[@XX-es8vg]

Well, this all sounded really solid. As far as I can tell it's only a simple matter of some engineering details; all the actual hard theoretical work has all been done.

[@KalebPeters99]

Brilliant 😂😂

[@martkbanjoboy8853]

Orion class spaceships are more likely to happen. However this means also their crews would die as nobody has figured out a steering or braking system that works.

[@mercurywoodrose]

Engineers: that guy with his hands on his hips looking really annoyed.

[@thomasseidel2381]

You mean it's oven ready?

[@tsamuel6224]

Right. Sounds like a solid plan. What could possibly go wrong? We can pop a ring of gigawatt power plats around the equator to power the robots to keep them working hard and get it done in no time flat. Sabine knows the job so she can terraform the place in a couple months. Then she can turn it over to developers so we can have beaches and hotels in a couple more months. Maybe a year it's all done. Nobody could guess it started out a fixer-upper. Thanks Sabine, you've got the plan, you've got the job!!!!

[@daveseddon5227]

Arnold Schwarzenegger produced a documentary about Terraforming Mars but I don't totally recall all the details - it turns out that the Martians have already built the machines required to do the job. All we have to do is get there! 🙂

[@johnmcintosh8673]

I completely remember that documentary, although the Colin Farrell edit seemed to push the terraforming to one side.

[@Urroner]

Get there, AND find it AND find the instruction manual AND find a Rosetta Stone to translate it AND find a hand of a Martian. Easy peasy.

[@indricotherium4802]

Surely you should be able to rememberthat wholesale.

[@Lincoln_Bio]

I think it was called "Blue Sky on Mars"...that's a good one

[@telectronix1368]

Yes but we would be required to overact on numerous occasions and still think perms were a stylish look.

[@stephenlitten1789]

I vote for Sabine to be in charge of the terraforming - she has boundless optimism and the confidence this engenders.

[@rocketsroar1]

This is a great, sarcastic exposure of the totally nonsensical "terraforming" proposals you often see, made by people who should certainly know better.

[@CAThompson]

TOO EASY, RIGHT. Just like putting a particle collider around the moon, or a huge solar shield over Venus - let's get a bunch of mates together and do it after Christmas!

[@TheShootist]

Elon will prove to be the smartest one of all. After all he's already done three impossible things before breakfast.

[@mocaxu]

@@TheShootist Elon only wants to go home. He doesn't care whether humans can survive.

[@stephenpeterson7940]

@@mocaxu And take Mark Zuckerberg with him. The Zuck is clearly not human and, being the alien frat boy he is, he probably got drunk on glowjuice and crashed that ship at Roswell in 1947 -- or something. 👽

[@sbkarajan]

Go to the moon first people. You haven't even set a foot or have a base there, just 3 day trip. We see the moon almost every day, and never even capable of going "BACK(???)"!!!! Seriously!!!! And then Mars? LOLOLOL!!!! You gotta be kidding. Wake the hell up people!!!!!!!!!!

[@blackshard641]

"We can't breathe carbon dioxide. I mean, we can, but not for very long." 🤣🤣🤣

[@tarmaque]

Apollo 13 showed us all we really need to breath carbon dioxide is some space underwear, some dryer hose, and a lot of duct tape.

[@SofaKingShit]

Sounds more like terror forming.

[@darrennew8211]

Muppet movie: "I'd like to try this without the hot air balloon." "Try what, plummeting? I guess you could try it once."

[@maxwaggoner823]

We breathe CO2 every minute of every day. Just don't inhale, exhale as much as you want.

[@thewiirocks]

@@maxwaggoner823 We inhale plenty of CO2 as well. It's just that it's not a significant component of the atmosphere. It's the one gas that humans are pretty sensitive to and gets uncomfortable in high quantities. The trick to our successful breathing is not really the lack of CO2, but rather the continuing presence of oxygen. The lack of oxygen is the real problem on Mars for humans. For plants, the lack of nitrogen is actually going to pose a big issue.

[@Alorand]

Reminds me of a conversation I had back in college, trying to point out that the easiest planet to terraform is Terra - aka. Earth.

[@FATillery]

Right now and the foreseeable future my friend, that is our only answer.

Lifeformung the deserts

[@morrisdavidmullings9833]

Yeah but there is no real money terraforming Earth

[@rhael42]

@@morrisdavidmullings9833 then our priorities are wrong.

[@FATillery]

@@morrisdavidmullings9833 Perhaps but there will still be Life on Earth. Money is just a human endeavor which we could create again that is, if we are still alive.

[@roshan8853]

I can't remember the last time I laughed out loud at a physics video before, this is hilarious. And what a delivery!

[@NielMalan]

I love Sabine's videos: she always base them on published science!

[@theultimatereductionist7592]

And she DOES THE MATH HERSELF!

[@Tim_Small]

Apart from the VPN bit, that is...

[@rwgoodship3653]

Love how you can be both informative and tactfully sarcastic at the same time.🥴. Another great video. Cheers from Canada 👍😎🏹🇨🇦

[@faris.Djunaidi]

After watching this, my sarcasm dose for a month have been satiated.

[@dogcarman]

My sarcasm meter threw a spring at me… 🤔

[@MartinBgelund]

I was quite pessimistic about our prospects for moving to Mars anytime soon. Now, after having heard Sabine's listing of all the fast an easy ways to terraform Mars, I'm much more confident we can soon go there. Sabine is great!

[@michaelpettersson4919]

Joke aside there are difference between terraforming and colonising. And localised terraforming in greenhouse bubbles should definitely be a thing.

[@ivanleon6164]

cant imagine a race that can do what sabine said and also have problems with weather on their own planet that its perfect for life, lol.

[@olafnilsen1641]

@@michaelpettersson4919 paraterraforming

[@SuperHecticEclectic]

@@ivanleon6164 If a sufficiently large asteroid hits Earth, it won't matter how perfect the weather was. Without self-sufficient colonies on other planets, humanity will go extinct in a single day. This already happened once, with dinosaurs. It can happen again. Think of it as cosmic insurance.

[@rais1953]

@@SuperHecticEclectic That's true Grigory but on Mars with its wispy atmosphere even the smallest meteorite strike could destroy a sealed habitat bubble. The only place reasonably safe from that would be in tunnels in hillsides or possibly lava tubes.

[@ysonokosan]

"We can't breathe carbon dioxide. I mean we can, but not for very long." Holy shit I died laughing.

[@appleslover]

German humour is ze best!

[@holedplot]

Breath.

[@ItzAllMine360]

Reminded me of the fact that all mushrooms are edible. Some of them only once. - Terry Pratchett

[@ysonokosan]

@@holedplot Breathe. Breath is your breath, breathe is breathing, the act.

[@Jay_Johnson]

@@appleslover the delivery 👌

[@mateus_o_oficial]

“So you’re telling me there’s a chance!”-Lloyd Christmas

[@markmetzger5430]

I am in love with your scientific explanations that even a common muggle, such as myself can apprehend. That you bring a new personification of the term "snarky" in your delivery forever endears me to never miss one of your videos. Amazing work! ❤

[@rais1953]

The hype about terraforming Mars deserves the treatment Sabine gives it here. It's wonderful to see it given such elegant, informed mockery with barely a smile as she destroys the myths. The reality of living on Mars is that it can be done, as living in the International Space Station can be done, but very expensively in a sealed habitat. Oxygen can be extracted from the air and there's plenty of water ice if you settle next to, or on top of, a deposit. Radiation protection would be difficult but possible. But as a new world for millions of people it would be very hard to achieve.

[@MichaelAussie05]

This is brilliant thanks Sabine for your time and efforts on a humorous, informative and entertaining video. Cheers.

[@hipphipphurra77]

If we succeed in stacking 5 M&M's of the peanut kind then we are ready to terraform Mars.

[@aleleeinnaleleeinn9110]

It's not that hard. You are playing fair. Heat the M&Ms until the become flexible and sticky.

[@patternsmashing]

YES! Invest NOW in Mars terraforming!

[@dr4d1s]

Out of all the great videos that you have made, this one is my favorite. Thank you for putting this topic into perspective. How do we ever think we can accomplish something on this scale when we can't even agree on something as simple as the color of your skin doesn't matter?

[@jgunther3398]

it won't be "we" doing it, it will be geniuses doing it. "we" will probably be doing everything in our power to stop it as we did with apollo

[@stefanr8232]

@@dr4d1s The surface color changes the albedo. That was the whole point of the aerogel. Skin that is transparent in visible frequency but opaque in infra-red is ideal for warming up a planet. For cooling Venus you want visible opaque and infra-red transparent.

[@dr4d1s]

@@stefanr8232 Thanks for the cool info, I appreciate it but I think you replied to the wrong person.

[@magtovi]

Or agreeing in controlling CO2 emissions to survive here on Earth. Heck apparently we aren't even agreeing that it is an actual issue.

[@Saitanen]

@@magtovi well, there’s little brave people who’d risk their assess confronting idiots of other countries like Malaysia to stop execssive pollution and all that. We need a new generation of intelligent savages maybe?

[@AlanRPaine]

Great video Sabine. A presentation that I saw on KZbin from the Mars Society conference said that in terms of energy from sunlight it would take 100000 years for plants to create a breathable oxygen from CO2 even if there was enough.

[@rais1953]

That proves Sabine's point. You just have to hold your breath for a while.

[@michaelkyriacou7026]

You always hit the nail on the head Sabine, brilliant and totally inspirational, rock on!!! 🖤🖤🖤🖤🖤

[@m.t.cronin2828]

The best thing about this is you made it through the whole video with a straight face.

[@MrScrofulous]

No, no.......that was the German equivalent of hysterical laughter. :)

[@AWillforY]

I always figured going to Mars would be the equivalent or working an oil rig you can never leave. With the added benefits of no one around big enough to be upset when a bunch of us get sick, disappear, and die. I get Orwellian vibes anytime I think of a colonist who's ready to retire.

[@alcosmic]

*enter the nutrient extraction chamber

[@jamesdriscoll_tmp1515]

@@alcosmic the "recycler" awaits..

[@Lincoln_Bio]

This is the future that Musk & Bezos are working towards, and it's absolutely fucking terrifying.

[@Mark-dc1su]

@@Lincoln_Bio only because it is their private property and it must be profitable to compete. Let's just do away with private property in the means of producing our lives

[@asdu4412]

Philip Dick wrote at least a half dozen novels and god knows how many short stories based on that very premise. The Three Stigmata of Palmer Eldritch, in which life on Mars is so unbearable that its colonists escape into a sort of virtual reality made of Barbie-like toys and hallucinogenic drugs to enhance the experience, to the point where the company that supplies the toys (and the drugs) is one of the world's most powerful corporations, seems especially apt.

[@Totalinternalreflection]

I get just the slightest sense you’re not fully on board with the idea? Haha Thanks for all the great videos.

[@radupopescu9977]

You really made my day! Realistic presentation with the sarcasm exactly where it should be placed!

[@magnvss]

The level of SARCASM in this video alone beats a whole year of Sabine's videos. AND she went easy because the realities of Mars are even worse for any proposed habitability of such planet, that was just the beginning. People think it would be like cool second-earth. Just (very) low gravity alone could (potentially) be mortal on a long enough time scale.

[@michaelpettersson4919]

We could invest in massive space habitats and terraform them. Sure it be things a mile, or a few miles long rotating giant cylinder but it should be doable.

[@bernardedwards8461]

I knew Sabine was only taking the piss as soon as I saw the title of the video, but you are wrong about the low gravity being an insuperable obstacle. In his birthday suit an average man would weigh 4 stone, but he won't be in his birthday suit except maybe when he takes a shower. For the sake of their health, and also for practical reasons, the astronaut will most of the time be carrying extra weight, so he will weigh 6 stone or more. I used to weigh 6 stone once, and it didn't do me any harm. Apart from which, astronauts will only spend a few years at a time on Mars, only a lunatic would wish to spend his whole life there.

[@johnkeck]

@@bernardedwards8461 Depending on habitability and life expectancy there, spending the whole "rest of one's life" on Mars may be hard to avoid. Yikes.

[@bernardedwards8461]

@@johnkeck Don't be silly, it will be the easiest ting in the world to avoid. The expedition will not be allowed to take place unless the chances of returning are excellent. Having said that, there will be an element of risk, so there is no absolute guarantee that all members of the epedition will return. Some may indeed spend the rest of their lives there, but not from choice. The one thing to be said in its favour is that if a man lived to 80 on Earth, his twin living on Mars would only be aged 40.

[@stevencoardvenice]

Yeah I saw some goofballs in the comment section of some Perseverance video talking about kids being born on Mars

[@johnedwards2119]

We should probably start by terraforming earth.

[@KateeAngel]

Earth was just great. Before our destructive species started to exist

[@tinkerduck1373]

We're already terraforming earth...kind of

[@Urza9814]

I'd prefer they work the bugs out somewhere else...there's NO WAY it's gonna work right on the first attempt!

[@johnedwards2119]

@Philip Saunders By saying "Terraforming Earth" I meant stop fucking it up and maybe growing something in deserts.

[@paulpedersen1329]

"Other than that, no fancy technology required." 😂

[@MrCesarification]

Just when one thinks you couldn’t get more awesome, Sabine, you pull this… this… this is high comedy man. So many quotable one liners in this one, oh, my sides! 🤣

[@will2see]

1:40 - Correction, Sabine. Mass is 1/10 Earth's, and surface gravitational acceleration is approx. 1/3 Earth's (not 1/10).

[@slimee8841]

Sabine's sarcasm is something to be appreciated

[@guilhermeroneto]

The world: Germans have no sense of humor. Dr. Hossenfelder: Hold my beer...

[@springinfialta106]

Don't forget their attempt during WWII to kill the opposition with humor: There were two peanuts walking down the street and one of them was assaulted... peanut.

[@tarmaque]

​@@springinfialta106 Wenn ist das Nunstück git und Slotermeyer? Ja! Beiherhund das Oder die Flipperwaldt gersput!

[@dogcarman]

Classics, both of them!

[@Jassimbucheeri]

@@tarmaque The Funniest Joke in the World

[@andrewch4066]

- Raiden! Have a nice flight. - And people say Germans aren't funny

[@yewtoob2007]

Great video and thank you, Sabine. I'm tired of hearing wikipedia dilettantes explain how straightforward human enterprises on Mars will be.

[@bozo5632]

I guess I'm one of those dilettantes, or maybe I'm just dilettante-adjacent. I completely agree with skeptics about the feasibility of terraforming, and then some; but I do think some human enterprises on Mars might be relatively straightforward, even some very ambitious ones.

[@jeanf6295]

This makes geo-engineering looks like a sensible idea. You could also do the less popular but also quite "interesting" ideas for the colonisation of Venus.

[@DrStrangeBrew]

Thanks Sabrine, now I'm going to be spending the next few years trying to stack 6 M&M's. Might as well be trying to terraform Mars.

[@RadicalCaveman]

It would be much easier to stack the M&M's on Mars. Lower gravity.

[@tsamuel6224]

Always start with the M&Ms already stuck together in the bag so you only have to stack three. Then cheat. No sweat. Terraform Mars? Same deal.

[@scotth6814]

Super Glue is your friend.

[@misiknuo]

Elon Musk disliked this clip,great video as always Sabine...

[@mortkebab2849]

The terraforming of Mars can be a by-product of the terraforming of Venus: After freezing out Venus' atmosphere with a parasol, we use robotic mass drivers to send some it on a trajectory to Mars. By also using such means to bring in nitrogen from Titan, we would get an atmospheric composition similar to that of Earth, after plants have done their thing and released oxygen from the CO2.

[@eewls]

Yes... YES!

[@davidwvalentine8024]

I never tire of your intelligent satire. Keep them coming.

[@uhmnope4787]

The comedic introduction was so wonderful! I love your humour in general! We Germans take our humour so seriously, it's really no laughing matter! Also absolutely ripping some projects apart! "The Mound" more like "The Disappointment"

[@CAThompson]

One could just get a bunch of municipal council workers to build a road or something and dump the removed dirt in a giant pile.

[@winstonvpeloso]

sabine’s sarcasm is such a hit it gets its own episode. checks out

[@jaybrodell1959]

This is why all the advances species on Mars live underground and only make infrequent visits to the surface to check out Matt Damon's potato crop. Did you mention the meteors?

[@arch1107]

the ones that fall over us all the time, or the ones that also fall there? i am more worried about people that will work on the moon and will get hit by those, they will drown in molten cheese, horrible death

[@Foolish188]

@@arch1107 Depends on the type of cheese.

[@arch1107]

@@Foolish188 horrible delicious death you say? lol

[@mvolestrangler]

finally someone speaking up about the dangers of cavorite.

[@rickcullarn1347]

I am an old space nerd but even so I am beginning to appreciate your humour. Thanks

[@SandraMarkusTrachsel]

I can see that 39 of your science colleagues have watched your video too and they are not delighted that you ruin their funding to terraform mars. Your videos just make my day!!!

[@Foolish188]

It is the Fusion Scientists, keeping a grudge for her earlier video showing them lying.

[@THX..1138]

@@Foolish188 I have to say in defense of the poor fusion scientist and would be terraformer. At least they want to do something useful. Whereas theoretical Physicist are like that thing your trying to do... It'll be really hard, it may never work. Why don't you pay me to think about random S instead ...I mean who knows...Every couple of centuries one of our ideas turns out to be good for something😉

[@Foolish188]

@@THX..1138 Perhaps 30-50% of the modern American Economy is based on Physics research in the 1930s. So, yeah, throw money at those theorists.

[@THX..1138]

@@Foolish188 Yeah, but no. I said theoretical physicist, not people with physics degrees working in the real world trying to tackle real problems. Einstein published general relativity in 1915 and that's about it. That's 106 years. You call that century. Not that theoretical physicist have been goofing off or whatever, but they haven't produced anything earth shattering since then either. Not tying to crap on theoretical physicist, but I honestly think their happy in their low pressure academic world.....Dr. Raymond Stantz summed it up pretty good... kzbin.info/www/bejne/eZPKhaBvf7GbqsU

[@vauchomarx6733]

@@THX..1138 Especially without the theoretical work on quantum mechanics and the standard model, the practical work of someone with a physics degree wouldn't even remotely be as useful. The technical device you are using right now wouldn't run without it.

[@angelicamartacahyaningtyas9083]

If we can not repair our beloved earth, there is no way we can terraform any other planets.

[@telectronix1368]

That's not necessarily true. The biggest barrier to fixing the many problems we have created is societal inertia. We know what we * could * do......but it means giving up or putting off things that currently enjoy. At least on another planet you're not needing billions of individual, self-preserving dna-replicating-units to, please, do something that doesn't benefit them immediately/directly.....you've (just) got an engineering/logistics problem.

[@arch1107]

our beloved earth is not broken, we are just filling air and water with crap, messing temperatures, the planet is not broken, will just have problems to remain habitable for every form of life

[@chuckschillingvideos]

@@telectronix1368 No, it's fantasists like you who haven't the slightest understanding of basic realities like economics and engineering and logistics.

[@Urza9814]

...do you REALLY want the first attempt to take place here on Earth??? There is NO WAY it's gonna go well, perhaps we *should* be trying to practice somewhere like Mars....

[@zoranvujovic998]

Sarcasm is my favorite form of humor. Loved the video

[@filopat67]

That was the longest and most elequant FU I've seen and heard for a while.

[@DM_Curtis]

Also, don't worry about the perchlorates -- they'll just fix themselves...

[@arch1107]

you will not touch them, so they are just fine, worry for the ones you touch here on earth, like the nuclear stuff we never are exposed to, same to carcinogenic chemicals on food or air or water

[@tarmaque]

Thank you for bringing that up. (Of course perchlorates are great for making rocket fuel, and for extracting oxygen.)

[@TD05SSLegacy]

Yes, just bring your salt shaker 🧂 and your set for seasoning!!! 😝

[@chuckschillingvideos]

Radiation? Not a problem either! We'll just genetically modify ourselves to be immune to it, right?

[@arch1107]

@@chuckschillingvideos it would be a great idea, improve cellular regeneration and resistance to mutations, that would fix that problem

[@writerconsidered]

I knew mars didn't have a magnetic field and solid core. I didn't know you could simply wrap a wire around it and create it. One thing you didn't mention was time, even if you could get all this infrastructure in place and working how long would it take to create any significant atmosphere? It's almost as if we should invest that time money and energy into fixing the planet that has everything we need, except for intelligent life.

[@szabomarton8064]

I have seen a documentary named Spaceballs and they had a pretty good system there to transfer air from other planets

[@durandalgmx7633]

@@szabomarton8064 Thats actually a good solution. All we need to do is find frozen chunks of Oxygen in say the asteroid belt and bombard Mars with it. Youll get heat too, and, since you only lose 100g/sec, you don't need that magnetic field. Just throw an extra rock.

[@PeloquinDavid]

Ah yes, "lacking intelligent life": that seems to be the binding constraint here in Earth too...

[@AlanRPaine]

A speaker at an online conference of the Mars Society said that using the solar energy falling on Mars it would take 100,000 years to convert carbon dioxide to a breathable atmosphere assuming there was enough carbon dioxide available in the first place. That's a very long time to run your million ton superconducting magnet waiting for the planet to become marginally habitable.

[@SteveBakerIsHere]

"simply" wrapping a wire might not be so terrible - but this is a super-conducting wire weighing a million tonnes. It would take SpaceX's StarShip 10,000 flights just to get the raw materials there. Getting the power for it - and the cooling plant - probably ten times that much stuff.

[@K1lostream]

Surely on our mission to becoming successful terraformers, our first step should be learning how to not-bugger-up the planet that has already been terraformed for us!

[@SaHaRaSquad]

That's what always gets me about those Mars colonization guys. Our own planet only is like 1-2 degrees too warm and the atmosphere is very slightly out of balance and we can barely deal with it, meanwhile they want to go live at -60 degrees without magnetic shielding, oxygen or anything really. And even if we had all the tech for it, I'm pretty sure most people couldn't deal with half a year in a cramped spaceship and no gravity - many already have problems with a mask on their face for 5 minutes.

[@valentinmalinov8424]

You are spot on! Thanks

[@VioletGiraffe]

​@@SaHaRaSquad, this is a silly argument. Try doing a complete renovation in a house where people need to live at the same time vs. an empty house (the way it's done properly). It's damn near impossible to renovate a house and keep it livable until the process is finished.

[@SaHaRaSquad]

@@VioletGiraffe You don't even know how earth's climate could be realistically stabilized, so how do you know it can't be done "properly" with humans and other species still on the planet? Exactly, you don't. Last time I checked you could fix the "climate" and "weather" in a house pretty unintrusively with air filters and ACs, if you're that adamant about comparing a building to a whole planet.

[@caseyjp1]

The more I watch The Expanse, the more I love it. "The dream of Mars" in the show...200+ years from now...is eerily similar to "the dream of fusion" now. Love your stuff!

[@tsmspace]

it's hard to imagine ships like that running around in only 200 years. Those ships are, shall we say,, badass.

[@paineoftheworld]

What's really great about it is the speed at which the dream is abandoned in favor of the gates.

[@DIYTinkerer]

My Astronomy mentor (RIP) always described Mars Atmosphere as 'A good laboratory vacuum'

[@javierblanco7467]

"A little bit of genetic engineering". Genius.

[@johnduncan5117]

That was savage. Delivery was entirely flat.

[@ivarbrouwer197]

Stacking 5 M&M’s stacked upon each other… we have retrieved material from The moon, and a few grams of an asteroid. It’s a nice analogy of our progress into asteroid mining, but I would like to state that you can buy pipes of M&M’s where they are stacked upon each other, just not supported by gravity, but by other means: we should be able to cheat our way out of self imposed rules.

[@Foolish188]

Self imposed rules??? Lol

[@judgeomega]

cheating should be an olympic sport. people are trained from birth to obey and conform. we need more dreamers and rule breakers to make progress.

[@ivarbrouwer197]

@@judgeomega when it comes to science an innovation? 100%, no scratch that, 110% agreed!

[@georgesos]

@@ivarbrouwer197 and who cares about ethics,right? Let them test the "inventions" on humans too... Think people, think.

[@ivarbrouwer197]

@@georgesos i don't think i meant skipping ethics, sorry if it seemed like that. thinking outside the box is what I meant, in the M&M's case: why limit yourself to gravity when stacking them if a plastic tube can do the job too. science & engineering, in this regards is not a sport like stacking M&M's in the example is, but who cares about the rules in an M&M's competition? It's beg's for innovative solutions if the goal is stacking a family pack consisting of 450 grams of M&M's (here, in this case, ethics aren't really important.)

[@shadidsciencetechhealth1534]

I am addicted to this channel and listening to Sabine and her humorous sarcasm! I can't get enough! And did I mention I'm learning as well?

[@jackkadaka9020]

How many steps to save the Amazon rain forest? I'd love to see that list. How many steps to end fossil fuel production?

[@Dug6666666]

Easy on both accounts. Step one, send all the humans to Mars. Step two....... na that's it.

[@ooooneeee]

Step one: governments finally do shit against the climate crisis and habitat loss.

[@usr7941]

@@ooooneeee they can't stop hoarding money. Greed is addictive

[@opabinnier]

Thank you Sabine. I am so tired with Mars enthusiasts for this very point: no magnetic field, so no protection from solar wind = no atmosohere; too small, so not enough gravity and all that flows from that. The complete lack of Oxygen is a very minor issue by comparison. These are not obstacles you can overcome or ignore: Mars is NOT for humans to live on! What's the matter with these people? I know: they cannot grow up.

[@2adamast]

Nonsense, the lack of magnetic field just means that the atmosphere will disappear faster, like 0.000001% a year. Terraforming is probably possible it just takes a million years, comet bombardments, and other stuff

[@cedriceric9730]

@@2adamast a million years is a long time dude😂 The fact that you said it means you know it's nosense

[@schakalix]

Super easy, barely an inconvenience! 😉

[@Joe-Dead]

more practical ways some have conceived: magnetic field, satellite swarm of conventional solar cells and coils. Release of CO2, lowering the reflectivity of the deposits to absorb more energy, using the satellite swarm to beam excess energy, land based drones to just chew it up and fart it out. i don't however see terraforming mars even using available technologies as something anyone should be focusing on. all the issues of living on mars involves hardened structures and/or going underground. once there then you have your research subject at hand.

[@reasonerenlightened2456]

The way to terraform Mars is to land enough spaceships to cover the surface of mars. Each spaceship would have to generate 3 to 6 times more power/energy than the energy required to maintain life inside the spaceship. The solution is scalable. But first, we have to agree on the design of the space ship.

[@Cythil]

Yeah, I agree that focusing on terraforming Mars now is a bit early. I mean, let's settle there first. And even then I would go with Paraterraforming. That way, we do not need to screw with a whole planet. Just make the living space we need and possibly preserver the rest if we feel like it. However, the techniques for terraforming has other applications. And that is here on good old earth. We likely need to start using directed geoengineering to fix what we have screwed up by unplanned geoengineering, such as messing with the thermostat. Some have been pretty good at doing geoengineering on a large scale before, such as the Dutch. So there is nothing new to it. But researching better methods is always good. Especially since it easy to get a lot of unintended consequences. Which we have a lot of experience to with.

[@williamgiusti7146]

I have a simpler three steps solution: 1-Build a Dyson Swarm. 2-Use it's power to crash Mars into Venus. 3-Adjust the resulting mess over 300 million years until it resembles Earth. Meanwhile you can better manage your own statistically improbable life sustaining planet and send a few colony ships over the entire galaxy.

[@calmeilles]

What we need is a wormhole between Venus and Mars… attenuate the atmosphere of the one, thicken that of the other until pressures equalise. Two planets terraformed, almost. Okay, so Venusian "air" is also mostly CO₂ and a balmy 500°C or thereabouts, but these are trivial problems. 😀

[@georgelionon9050]

@@calmeilles And you can also make a wormhole between sun and your enemies...

[@BenJamin-rt7ui]

Surely you mean crash Venus into Mars?

[@idealfather3547]

That mars with a superconductor wire around it would make a great setting for a sci fi novel.

[@korakys]

That aerogel idea actually sounds kinda useful for enhanced greenhouses on earth.

[@arctic_haze]

Unless the aerogel turns out to be toxic 😂

[@penumbraman99]

Maybe we can cover all of Antarctica and the North Pole with aerogel? Then turn them into greenhouses? We could turn Greenland into a green land. It could lower atmospheric CO2. Unfortunately, if that worked, all the earth’s ice would melt and flood out all the heavily populated coastline. I don’t like Florida anyway!

[@Markle2k]

It's not very structurally sound. It's kind of like fine-grained styrofoam. 🤷

[@penumbraman99]

@@Markle2k Since aerogel is one of the lightest manmade materials, I know you are right. Between the polar winds & the polar bears, it would be torn to shreds very quickly! It was wishful thinking on my part. I was hoping to solving climate change and to getting rid of Florida.

[@Markle2k]

@@penumbraman99 There are some aerogels made from other materials than silica that seem to be stronger, but many of them don't have the desirable optical properties, like transparency in wavelengths used in photosynthesis. Perhaps some sort of foam-core construction could be devised that minimizes the loss of desirable properties while increasing the strength of the overall structure. But really, most physical greenhouses don't actually work like greenhouse gasses do in the atmosphere. It's a bad name for a very real atmospheric phenomenon. Most of greenhouses' warmth comes from preventing the air inside from engaging in convection with the rest of the atmosphere, not through blocking outgoing long-wave EM radiation and reradiating back to the source. You can make a good greenhouse from polyethylene/polythene, acrylic (aka plexiglas/perspex), or polycarbonate, all of which are near-IR transparent.

[@Weiszklee]

Man, if only converting CO2 to Oxygen was something we could do here on earth, then we wouldn't have to leave in the first place! Alas, it's clearly much easier to do that on Mars.

[@JelMain]

Chlorophyll

[@ooooneeee]

😂😂😂

[@michaelblacktree]

Plants do that naturally. But here on Earth, we keep bulldozing them. On Mars, there are no plants for us to bulldoze... yet. 🤔

[@stargazer7644]

It is easy to convert CO2 to Carbon and Oxygen. All you need is energy.

[@HR15DE]

The idea is that humanity should go to mars to be multi planetary species. Not for escape plan. Like people will just want to live there because they can, with fusion and post scarcity civilization. Imagen how tech increased in 100 years. Imagine 1000s. Eventually those times will come

[@Theineluctable_SOME_CANT]

WEAPONIZED SARCASM! How COOL and SMOOTH is this young genius? Exceptional.... Thank you, Sabine! Kind regards from Australia.

[@garrettord3304]

Perhaps I've been into hard sci-fi and futurism too long. I just can't see Mars as a place to terraform. I see it as a massive cache of resources to be exploited and dismantled using the most efficient methods possible, without worrying about environmental damage like on Earth. We'd "colonize" it for that purpose

[@Lincoln_Bio]

That exactly what Elon Musk sees too, but he'll never admit it

[@bozo5632]

@Cancer McAids Yeah. So many reasons. Asteroids come pre-sorted by type and mineral composition, and with higher concentrations of rare goodies than you'd find on the Mars surface. Plus microgravity = cheap shipping. On Mars you'd need lots of mines spread out everywhere to get at the same mix of materials. In some ways more gravity makes mining easier (you can use conventional equipment, without worrying about your front-loader launching itself into orbit), but more energy intensive. Much higher transport and shipping costs. It only makes sense if you intend to use the stuff on Mars. Mars is far away, too. Probably the moon would be better all around than Mars. An asteroid towed into lunar orbit, or in a Lagrange point, would be even better. Fill lunar orbit with manufacturing and agricultural platforms, powered by solar, supplied by asteroids. (Especially ag - our most ecologically destructive industry.) Export to Earth on cheap, disposable reentry gliders that land at freight terminals. Stop eating the oceans bare, let farmland go back to nature. At a profit.

[@Markle2k]

@@bozo5632 Differentiation of things that meet the IAU's "planet" definition tends to hide a lot of the good stuff under a lot of overburden. Ices and some soils are nice, but we'd really like some more platinum group stuff and transition metals. Sure, you can turn water ice into fuel, but where are you going then? "Far away" is a feature when the purpose of colonization is to provide a backup in case of large impactor sneaking up on the homeworld.

[@bozo5632]

@@Markle2k I think a "backup" won't be possible for a long time. Couple centuries? IDK. We'll be mining stuff for Earth markets and Earth orbit long before that. Yeah, planets are crap. We don't need no stinking planets. The solar system is large, but everyone's going to want to be in one place because of light speed / communications. I can imagine millions of small cities in Earth orbit, and very little else beyond.

[@TheZabbiemaster]

There was another idea about shielding mars from the solar winds by placing a electromagnet + power station in space that floats at a Lagrange point Between Mars and the sun, sort of like an umbrella

[@cagrulucyildirimoglu771]

Yeah, after I watched a video about it I thought it was one of the easier problems to deal with. Not sure if Sabine knows about the proposal but the proposal here is hilarioulsy out of reach and her pessimism about the whole deal really broke my spirit :)

[@telectronix1368]

In a very bleak sense, without a magnetosphere, terraforming mars is just losing even more of the water left on Mars that is currently sealed in the ground .

[@Foolish188]

Sounds like a Solar Wind Engine. How to you keep it in place? The repulsive force on it should blow it out of the Lagrange Point as soon as it turns on.

[@MkurugenziMwenyekiti]

Here's an idea, why don't we find out how to shield _this planet_ we live on currently from the sun, in a bid to lower the global daily heat we receive to maybe 80% for like a few hours a day for some time and see how that goes? Clearly no one wants to give up their modern lives to try save the planet, we might as well start warming up to the idea of a giant umbrella.

[@Markle2k]

@@MkurugenziMwenyekiti It's the surprise Chicxulub event that is the purpose of moving off-planet. ☄ We have even fewer options with a large object with a 6-12 month time to impact.

[@Danielle-zq7kb]

This was pure genius! Anyone smart enough could debunk the current terraforming Mars solutions, but it takes genius to do it like Sabine!

[@Farrywind]

Starting with Venus is best if you ask me. Would love to see cloud cities on it.

[@suimeingwong2043]

May as well genetically alter humans to feed from sunlight and have them be able to breath the atmosphere of Mars and while we're at it make humans be able to tolerate low temperatures.

[@orbismworldbuilding8428]

When terraforming doesn't work, bioform We'll look like seals with big lungs and scaley skin, also the lungs will be partly machine.

[@paulhaynes8045]

Plants v zombies...

[@linguica]

Reminds me of how the most feasible solution for humans to withstand deep space radiation for extended periods is "just cure cancer"

[@glenfoord9652]

CRIKEY! I never thought about ejecting earths atmosphere into space. No more antigravity space diode project for me.

[@mureebe1]

When you publish a paper just to make multiple self-citations 😁

[@cherubin7th]

Finally Hossenfelder agrees with Musk that living to Mars is very easy.

[@humanity1581]

Sabine is right. It's more difficult to prevent humanity from destroging itself.

[@thedanyesful]

This is the first time I've watched one of your videos and this was really unique and good. The way you incorporated the real science of terraforming with your own personal perspective into a performance was really engaging and enriching.