That moss on Mars news, you beat Anton by half an hour.

@joshuaadamstithakayoutubel2490

Ай бұрын

Anton's video was at the top because Anton was late, so there!

@williampisano7573

28 күн бұрын

Lol 😂 I was going to say potato 🥔 from the movie 🍿

Thanks for shouting out Wonderful Anton

@xHomu

Ай бұрын

Hello, wonderful people!

@MegaPeers

Ай бұрын

​@@xHomu*person

@justfellover

Ай бұрын

Is he still spewing anti Russia hate?

@firstjayjay

Ай бұрын

Of all the countless videos I have seen, not once have a seen anything remotely negativ as in just one comment from you ​@@justfellover

Nice to see you shout out Anton. I regularly watch you, Anton, and John Michael Godier.

Hey there Fraser! Good on you for giving props to Anton. I follow his channel as well. I get a lot of good insight from both of you. Keep up the good work!

12:59 really thought he was gonna burst out in a song right there

The Fry thumbnail is a winner.

@DanielVerberne

Ай бұрын

"Give that robot some more beer!"

On reusable rockets the old Sea Dragon design from the 1960s should be taken into serious consideration. It would be a behemoth of a rocket, 490' tall by 75' wide. It would be capable of lifting 500 tons of payload into low Earth orbit for approximately $500 a pound. It's simplicity would make it extremely reliable and its re-usability make it low cost.

I don't think Ariane or ESA wants to do reusable just yet, as their low launch cadence in combination with reusable systems would mean less work to be done for everyone involved in between missions? Keeping the suppliers supplying and workers working, maintaining a healthy sector and expertise, seem to me to be the main benefit of the whole Ariane program. I could be wrong, and I am definitely a junior arguing the experts on this. Great video as usual, Fraser!

Eyeball planets sound like snowball earth tidally locked. With one large super continent.

@HansDunkelberg1

Ай бұрын

Why with one large supercontinent?

@user-un8tv1pp8m

Ай бұрын

Where do you get the continent-idea from? Eybeall planets dont need any landmasses, and the thing showed and talked about in this vid clearly assumes liquid or frozen water surface.

Thank you for the great videos, Fraser! When I'm busy I may miss important news and thanks to you and Anton, I manage to catch up with everything. You're doing a great service to the community.

Thumbs and big toes up for sharing credit. Like both you guys. 💯✌️🤓🦜😽🖖

watching Fraser reminds why 'journalism' is actually a profession, not a swearing word

@ashleyobrien4937

25 күн бұрын

yeah, CNN, MSNBC, etc. those are swear words...

Without that magnetic field, there will be no terraforming, or colonizing Mars.

I have to strongly disagree with the notion that rockets like Ariane have to be reusable. We need to keep in mind what launch cadence is targeted. Unlike in the US, there is no such thing as government payloads being required to be launched on domestic launch providers. This alone limits the amount of possible payloads significantly. If you look at the 2023 data, SpaceX conducted 33 launches that weren't StarLink. Of those 33 launches, 21 were for commercial customers and 12 were government (NASA, ESA, USSF, German Intelligence Service, Korean Armed Forces). Given these figures, ArianeSpace is looking at 10 to 12 launches per year *max* - you tell me whether it's worth it to invest 10s of billions into developing a fully reusable launcher that at best sees one launch per month. It's basically the STS story all over again - Shuttle was supposed to have a launch cadence of 50 flights per year, which never materialized and drove launch costs to over 1 billion per launch. So unless everyone and their grandma is starting to put mega constellations into LEO, there simply isn't much of a market for 20t class launch vehicles that would benefit from reusability. SpaceX only gets that benefit because they launch 63+ rockets per year for *themselves* (i.e. StarLink).

@KepleroGT

Ай бұрын

I hope we reach a point where we start asteroid mining. But no one seems to discuss it, not even Musk. That's when reusable rockets will really come in handy

@bbbenj

Ай бұрын

​@@KepleroGTnobody talks about it because it's hugely expensive, far more expensive than any mining on Earth, so no reason at all to go asteroid mining.

@absalomdraconis

26 күн бұрын

The Space Shuttle was so expensive because of it's design, not it's launch cadence. The Shuttle was doomed to being expensive once they had settled on polar orbit capabilities, and that in turn doomed it to a slow launch cadence.

@totalermist

26 күн бұрын

@@absalomdraconis That's only partly correct - the worst kind of correct ;) STS was in fact planned and budgeted to launch at least 40 times per year, with weekly launches being the goal. That's why there was an entire fleet planned, so that it didn't matter as much that launch preparations took longer than initially anticipated. In the end there were two main factors that kept the launch cadence so low: 1) lack of demand for large and/or heavy LEO payloads (Shuttle - just like Starship, btw. - was incapable of delivering GTO payloads); and 2) Shuttle requiring a crew. That last point was very important and is too often overlooked.

Thanks for all the news, Fraser! 😊 Stay safe there with your family! 🖖😊

I totally agree with your summation re Arianne 6. Do you have a perspective re Suni's comments during the recent downlink interview from the ISS. There seemed to be a moment of pause. Whilst the OMACS thrusters are good for de-orbit, I wonder whether the concern might be departing and the ISS and the pre de-orbit burn orientation procedures.

Dude! I havent checked you in a quite awhile. Good on your skill points getting allotted to speech skill! You sound awesome in your presentation. No sarcasm, you sound great.

That planet should stop staring at the sun😂

Ultraviolet does not wear down ozone. Ultraviolet creates ozone. It splits the o2 in the atmosphere into o. That's why ozone measurements can only be taken over the poles in winter time because new o2 is not being produced there.

I wonder what sense of time one would have on an eyeball planet if any sense at all. With the parent star always in the same position, it would always appear to be the same 'time of day'.

@oberonpanopticon

Ай бұрын

On a planet where the day never ends, the sun would truly never set on the British empire…

I always wondered if we could modify a plant to survive on mars. Guess we don’t have to! Of course, the water and perchlorates are still an issue.

@rogerphelps9939

Ай бұрын

Surviving and reproducing are two very different things.

I completely agree with those comments about Ariane 6. Once upon a time it sounded like great thing. And to some extent it still is for ESA - their only moderately heavy-lifting rocket. A bit more nature-friendly, too. But in the global scale, it kind of was dead before it was born. Well, flown. Which is sad. Space is hard, no question. But what SpaceX has done in last decade and a bit more shows that hard things can be done cost-effectively and in much faster rate compared to "old space agencies" which sometimes resemble a bit "social workplaces". Of course, thank you for another great overview!

Another great episode my friend

Love the thumbnail.

Thanks for another fantastic video! You do know you're the best, right??

@HansDunkelberg1

Ай бұрын

The best in what sense? Concerning the collection of anything space-related in a short, regular overview?

@thickwristmcfist3399

Ай бұрын

@@HansDunkelberg1 You disrespecting my man?? GTFO.

Love Fraser's new grill : )

Good job recommending Anton/adding the link below. What goes around, comes around.

Hey Fraser, have you seen the video "Ancient Life as Old as the Universe" from Kurzgesagt? I know it's just a theory but doesn't it neatly solve the Fermi Paradox too? As in, since the complexity rises exponentially, all the aliens must have reached at the same level of complexity as us and nobody would have crossed the barrier to travel in space as it may be a very difficult challenge.

@MrrVlad

Ай бұрын

but there is a caveat that signs of human-stage civilization would be detectable in local neighborhood by us.

@MrMegaMetroid

Ай бұрын

​@@MrrVladnot really. Our capabilities to detect anything for sure are next to none. In the radio spectrum we are barely even looking for life since there are very few telescopes scanning very little of the sky and not even a significant fraction of these are looking for techno signatures. as for biological signals, we dont even know how they would look like, and have an even harder time detecting them. We barely know of 5000 exoplanets and even of this tiny sample size we have barely started very crude measurements. While we are "technically" capable to detect something if we knew when, where and what to look for, it is practically impossible for us to find something at the moment and there is currently no way of knowing how plentiful life is. There is currently nothing to oppose the idea that life is literally actively trying to contact us from all sides at any given moment. We are for all intents and purposes, completely blind. And that is not going to change for anothet 60-100 years, as we already know what the next generation of telescopes will be capable of, and its not enough to actually look for and study earth sized planets around sun like stars. given that the generation after that will likely have a different focus, the generation after that might be able to spot them. And then we still need to wait for that technology to be viable for survey telescopes because there is no way we are finding anything by going through one planet at a time. The more you actually learn about what we can and cant do, and how little time is actually allocated to the insufficient tech we have, and how unsure we are how we would even confirm life, the more you start to realise there never was a Fermi paradox. The milky way could literally be completely taken over by a type 3 civilisation and we would be none the wiser. Aside from Dyson spheres, which are highly impropable, low tech approaches to energy creation, there is nothing we could ever hope to detect from such a civilisation

@harshsingh1989

Ай бұрын

@@MrrVlad may be rise in DNA complexity(number) doesn't guarantee intelligence and may be intelligence is rarer. We all can be false, who knows. Just being alone in such a vast universe sounds so chilling and horrifying to me.

@Grandremone

19 күн бұрын

Aliens are on another plane or dimension if you will. An analog would be explaining the abstract concept of a highway to an ant, let alone mathmatics and the like.

Not just any eye, but Frasiers eye. 🖖😎

Another perfect organism to place on Mars to terraform it would be Radiotrophic fungi like the ones that are thriving in the meltdown reactors. Since Mars is highly radioactive and has lots of Co2(which fungi also use to synth energy and mass) they'd be a perfect option.

I'm still subscribed to Anton Petrov's channel - but YT hasn't been recommending his videos in ages. I thought he'd retired from YT.

@bbartky

Ай бұрын

Don’t you get a reverse chronological list of updates on your subscription page in KZread? That’s how I know when there are new videos from the channels I subscribe to like Fraser and Anton. I almost never use the recommendations since 98% of the videos KZread recommends are garbage. For example, if I watch a video about the Apollo missions KZread recommends dozens of videos from flat earthers. 🤦‍♂️ Anyway, you can access your subscriptions in Chrome in the left-hand toolbar. This is true for Firefox and Safari and should be true for Edge as well.

@busybillyb33

Ай бұрын

Anton Petrov is one of the few channels for which I have all notifications turned on. Like for Fraser. So I never miss them.

@HansDunkelberg1

Ай бұрын

What KZread recommends to you is based on your watch habits, most probably also on what channels you have subscribed and have notifications for turned on. Petrov's channel is focused on detailed, comparatively dry elucidations of complicated scientific issues, which means that it will be recommended when you watch such content.

Thx for the vids 🤙🏼

Can we detect magnetic fields around planets like Eyeball?

Tidal locked exoplanets, although great for resources, and research. But I imagine we'd want something more earthy even if shorter or longer days, weeks years. Or even slightly different gravity, and atmosphere pressure. But we'll definitely want the best for a second backup human home planet.

Thanks a lot 👍

Awesome!!

Yummy information on a plant to terraform Mars. Wonderful. I'm already gathering information for a 2nd edition to my own book, *_Terraforming Mars: Remaking the Red Planet, Ready for Life._* The book is only in hardcover at the moment, but there are plans for paperback and ebook formats. Of course these will come before a 2nd edition. 😎♥✝🇺🇸💯

Can you create a video detailing types of stars, and their habitable zones and where their ultraviolet habitable zones overlap or don't?

If we could somehow genetically edit these moss characteristics into edible food (or make an edible, coca like, version of this moss) (or biofuel producing plants) it would make farming on mars A LOT easier. You could depressurize the crops and repressurize them without killing the plants.

Okay, I'll say it: "Mars already has seasonal moss/lichen that can live there. Photos of it were released years ago." Honestly, for the last 40 years, the "space science organizations" have designed missions and done everything else they can to not-quite-yet discover life on mars, trying to creep up on it like Zeno's Paradox without actually being forced to confirm the Viking results. It's a combination of pride and economics. Everyone wants to be the one to "finally" discover some kind of life on mars, but in their own name, not just confirming decades past that will give primary credit to someone else. Also, as long as they can dangle the bait of not-quite-yet discovering life, they can keep getting funding for everything that approaches it asymptotically, counting on governments to forget how easily the question could be answered after all. In both cases - ego and money - it's all about human politics, not about maximum revelation of the truth. Well, you're gonna find out in about 10 years anyway, because SpaceX is going to do the politically incorrect thing and just send people there to look around and set up shop anyway. In their viewpoint "We don't care about Zeno's Politics, and we're not waiting a century for bureaucrats to play out the long con. We're just going on our own budget, so eat our dust." You're welcome. If the powers-that-be in science/government funding don't like that post, they don't have to talk to me, nor give me ten billion dollars to not-quite-yet discover life on mars again. I guess I'm the cheaper alternative, but I'll remind you all of it if I'm still around for another decade :)

Moss on Mars. Martian Moss. Mars Moss. There's a good product name here somewhere. Or a band name, whichever.

simply put, all we really need to do is somehow increase the surface pressure on mars, and our plants would terraform the planet for us.

How pretty much literally, the entire pre-existing industry has done basically nothing in response to SpaceX, astounds me.

@frasercain

Ай бұрын

Agreed

@oberonpanopticon

Ай бұрын

They don’t have to, they’re still getting paid

@bbbenj

Ай бұрын

Just have a look at the message from Totalermist, posted about 1h after yours, it explains really well why reusability isn't an option for Ariane.

@lordgarion514

Ай бұрын

@@bbbenj If his excuse is anything like the one we got from ESA itself, then it's silly. They claimed they wouldn't have enough launches to justify it. Fact is, IF they went with the cheaper reusable option, then maybe ESA could take some of the business away from SpaceX. They're using stupid logic.

@bbbenj

Ай бұрын

@@lordgarion514 stupid logic? Are you sure? What kind of missions flies on SpaceX? - contracts from US government? OK... No. - Startink constellation? Hmmm... No. And there're few private contracts, which already can fly on Ariane 6 with this technology and launch costs. So it's it worth spending billions of euros for some flights? Really no sure. ESA's experts and salesmen aren't as dumb as you seem to think.

There’s hardly any atmosphere left on Mars to terraform. Practically a whole new atmosphere would have to be taken there and released just to bring up the pressure. And with no magnetic field, that new atmosphere won’t last.

I am leaning in the belief that Earth is a one-off situation, and that we may be alone in the universe, which could be good for us. Makes this galaxy ours and eventually the universe. If we don’t eradicate ourselves, where will we be in a million years as an ancient civilization?

@HansDunkelberg1

Ай бұрын

It seems to me that we'll conquer the entire universe much earlier. Believing that Earth was a one-off situation, you probably fall for a bias in exoplanet research. Planets of the smallness of Earth cannot well be found when they circle stars as far away from them as we circle ours.

I expect most launch customers care about whether a rocket gets their stuff where they want it and how much they pay, _not_ how many times the vehicle has been used or whether it will be used again.

@absalomdraconis

26 күн бұрын

Well, that depends. For human launch you want reliability, but for everything else, if the launch costs _one third_ the cost of the alternative, then you'll be very tempted to go with the cheaper option. That's the situation SpaceX has largely been in: their primary competitor (ULA) was roughly three times as expensive, and even their new Vulcan is almost twice the price. For a top-dollar NASA mission the lower price might not be enough (though the record of success would push them over the line to SpaceX in many cases), but for a small satellite the difference actually has a chance of allowing a replacement... or even of being the only reason the mission can launch at all.

@craigmackay4909

25 күн бұрын

As long as they don’t want carbon neutral lol.

@Grandremone

19 күн бұрын

Let's throw away a plane too after one flight, ldiot!

What would interest me is whether Syntrichia caninervis could grow along Mars' equator already now, during the phases of temperatures above the freezing point of water which occur there. For if this works, then one could perhaps use the moss already in the first period of a Martian outpost for the sake of reigning in the dust problem. I'd also love to hear more about how the scientists who consider the moss as potentially capable to survive on Mars have mimicked Martian conditions.

@absalomdraconis

26 күн бұрын

Probably too low of pressures from what he was saying. You need the partial pressures of various things to be in useful ranges if the plant is going to _continue_ living.

Moss on Mars to terraform? I saw the movie, it didn't end well. 😂

@HansDunkelberg1

Ай бұрын

What movie?

@tangypop

Ай бұрын

@HansDunkelberg1 Red Planet. I think it was algea but it looks like moss.

Ah, yes, LHS 1140b; the household name in celebrity A-List exoplanets!

That's not an insect bite on Frasers head, it's actually from a bear wrestling incident. It's ok, the bears are cool with it, good exercise.

@frasercain

Ай бұрын

Spider bite, I think.

@JamesCairney

Ай бұрын

@@frasercain so not bear calisthenics, no?

@busybillyb33

Ай бұрын

@@frasercain Have you tried crawling up the wall after the bite? You never know if you don't try.

@frasercain

Ай бұрын

We don't have any nearby nuclear reactors, so that's probably not in the cards.

We will NEVER terraform Mars let alone any planet. Imagine how freaking stupid it would be to spend tons of resources terraforming a planet when you could just build three paradise stations. Terraforming is becoming more over used then gaslighting

KineNova would be a way better name for KiloNova, given its a kinetic event

Anton mentioned, let's fucking goooooo

Would you please start with a date so when we watch or listen to something outdated it would be clear?

Interesting... Mars needs more mass and a spinning core for an EM field to be generated. Otherwise atmosphere will just bleed off the planet.

As far as reusability and lower cost, as far as I know it costs the same money to reuse an F9 whether it's used once or 9 times, it's not like the price is down to 10 million for launch, so maybe not is so reusable. Idk maybe Fraser now more about that

Mars has almost no electro magnetic field. Any atmosphere we could create there would be blown off fairly quickly by the solar wind, which is likely how Mars came to be as it is today.

So I know we have tried growing plants in Martian simulated soil. However, does anyone know if those tests ever tested Co2, Humidity and Temperature levels to see if they would grow under these conditions? That is kinda important to know.

Mars doesn't have the mass (gravity) to keep molecular Oxygen, or Nitrogen... Can keep CO2 though.. So we're unable to produce an atmosphere similar to earth.. Key might be to increase the mass of Mars by targeting it with Asteroids, preferrably frozen ones to add Water vapor.

Could enough comets &/or asteroids, crashed into Mars, kickstart a magnetic field and increase gravity enough to hold onto a life-sustaining atmosphere? Maybe in the next millennium.

11:13 Is it just me, or does this gravitationally lensed quasar look like a remaining ring?

You could probably crop dust he planet with the moss and bacteria. Small changes , how ever small , lead to bigger changes.

Could objects that have fallen out of view due to expansion still be gravitationally lensed to allow us to view objects no longer in the visible universe?

Hi Fraser, hope you read "Project Hail Mary", it's an awesome book. And a movie is currently in production.

@frasercain

Ай бұрын

Yup, I've read it. Looking forward to the movie

@marcekessen8003

Ай бұрын

That is my fave audiobook!! The guy reading it does an amazing job with a great story. I always thought it would make a great movie, hope they do not mess it up though…

@dredeth

Ай бұрын

@@marcekessen8003 I too hope so!

Question: How do large hydrogen plants form. Do they need to have enough mass first to capture hydrogen? ie does Jupiter have a solid core?

Will the ice shell of an eye-ball planet drift as the ice shell of Europa?

Basically, run!

It would be difficult to walk on an Earth 5 to 6 times more mass. Any life there would be highly compact.

Does the regolith on Mars resemble that of the moon closer to the surface and earth farther down since it had water farther back in time?

I don't think UV is that important for genetic mutation rate. If we assume life like here on Earth, then potassium-40 is one of several sources of radiation that cells and bodies are exposed to. If we assume a rocky planet, like Earth, there's also radon gas as well as uranium and thorium in granite and a few other lighter, crust-forming rocks. UV would probably be a more important source of radiation on a water world, where rocks are under kilometers of ocean and all life is in the water.

Is the the current fuel to payload ratio of Starship good enough?

How many Trappist-1 exoplanets in habitable zone are also in ultraviolet habitable zone?

Whooooaaa woaaah

Question: Could SpaceX superheavy booster reach orbit without a starship and in an expendable config with no grid fins? I was thinking about the possibility of refilling and restacking both the booster and starship in orbit to push starship further out into the solar system, or just cutting the transit time to Mars. Is there even a theoretical upper limit of stacking multiple stages in orbit and sending the complete vehicle on its way?

@oberonpanopticon

Ай бұрын

Iirc Elon said that superheavy on its own could manage to be an SSTO, but I’m pretty dubious about that. Even if it could, it’d just be a very large cubesat launcher in terms of payload

@NeonVisual

Ай бұрын

@@oberonpanopticon Well, I know he said starship could reach orbit with no payload and no heat shield (so entirely pointless for anything other than data collection), but not heard him say anything about superheavy. Being able to refill two stages and relaunch them from orbit would be awesome. A round trip to Jupiter with human eyeballs instead of probes would be incredible.

Bonus vid before vacation?!

@frasercain

Ай бұрын

I'm just on a hiatus from livestreams. Still doing lots of videos all summer.

The fastest way to terraform Mars is to build orbital habitats all over the solar system and let future tedium seekers mess with it. You know they will. We have nothing to contribute to the project except getting busy turning asteroids into I-beams already.

@HansDunkelberg1

Ай бұрын

What is an I-beam?

@justfellover

Ай бұрын

@@HansDunkelberg1 Bulk steel, ready for fabrication of space habitats and associated orbital infrastructure.

@HansDunkelberg1

Ай бұрын

​@@justfellover It seems that graphene currently begins to live up to its hype likewise. I do find this moment in history interesting, I have to say. Looking back at the twentieth century it's now trivial to diagnose a massive cataclysm of technology and society, but imagining that a comparable change of the dimensions of human power and infrastructure will soon happen another time is hard. Anyhow, as you say, sooner or later mankind is going to spread out into space. This currently lets me begin to enjoy the present, most consciously, as a romantic past looking back at which will to the people of the future appear like it now appears to us to reflect on the Middle Ages.

13:00 body!

Ayyo they changed the thumbnail

Where can I get one of those smellascopes?

@oberonpanopticon

Ай бұрын

I hear they sell them around Urectum

3billion martians reside inside Mars, every Solar System planet is the same ..

Plus thoses newly discovered oxygen rocks in ocean

H2S is astonishigly lethal, don't go there

That moss can be used to terraform mars. It would create O2

@orsonzedd

Ай бұрын

Cooking the rocks would produce oxygen that's not the problem getting oxygen , it is getting hydrogen and especially nitrogen also dealing with perchlorates

@HansDunkelberg1

Ай бұрын

@@orsonzedd Cooking the rocks could be harder than letting a moss do the job on its own.

@orsonzedd

Ай бұрын

@@HansDunkelberg1 not really. Mars doesn't have any conditions right for growing moss but you can cook rocks day after day no matter the weather with an erg

@HansDunkelberg1

Ай бұрын

@@orsonzedd Around its equator, Mars does have areas in which temperatures do sometimes climb above the freezing point of water. The atmosphere offers plenty of CO2. The amount of CO2 in it is comparable to the one in the atmosphere of Earth because the gas is its major component. I'd really have loved hearing more details on the experiments with the moss, therefore.

@orsonzedd

Ай бұрын

@@HansDunkelberg1 That sounds tenuous at best, plus the air pressure still is not significant enough for moss to live

👍👍👍

This idea that U.V. is preferred for habitable zones, do evolutionary biologist's support this idea of the astronomers ? because from what I understand, U.V. is NOT required to drive evolution at all, in fact U.V. is detrimental to organic molecules, although it MAY help DNA repair systems become more robust through natural selection/adaptation of course, but essential ? I'm a bit dubious....supercancer , anyone ?....

@frasercain

25 күн бұрын

The theory is that you want some radiation to push mutation, but not too much. Just the right amount....

Is the creation of the maldives rising sea level

What are some possible ways to create a magnetic field around Mars? Can we create a field using Mars’s rotation? Placing a permanent magnate going north-south?

@eman67rp

Ай бұрын

Can we melt the core? 🤔

@oberonpanopticon

Ай бұрын

@@eman67rpwell, you know what they say. If brute force isn’t working, you’re not using enough of it.

@HansDunkelberg1

Ай бұрын

Why should one make but a single magnetic field for the planet? Couldn't it be easier to create several smaller ones?

Is a world only made of water possible ? like a giant drop of water, no solid core. i think so.

All I'm saying is the 2nd segment where you talk about habitable zones would sound hilarious to a non English speaker 😅

@HansDunkelberg1

Ай бұрын

What do you mean?

Terraforming Mars is an incredibly stupid idea, and people who disagree need to go back to school. We live on Earth. Why terraform Mars when that tech could get Earth balanced first?

@esecallum

Ай бұрын

Exactly. Nothing on Mars that we don't have on earth.

Is it possible that those high velocity stars are just passing by that cluster? Feels like just going by their speed is a limited evidence... Unless they seem to follow an orbit within that cluster.

@frasercain

Ай бұрын

But they're all in the same region in the cluster

@WeglowySzowinista

Ай бұрын

@@frasercain yeah, sorry I asked before reading the paper. They do adress that. Thanks for your response still. And work you do, love your channel and Universe Today. Incredble work, respect to you, sir!

MUST MOSSIFY MARS

You would think, that by now they would of found some way to reuse those rockets In Space!! Like boast a big payload to orbit, then the stage thats left turned into a part of a space station!! Just saying!!

please! talk about the Dyson swarms/spheres eveyone is talking about!!!

@frasercain

Ай бұрын

I've done several episodes on it.

I suspect that you support the Rare Earth Hypothesis. The fact that such diverse and evolved life developed on Earth so soon after the Big Bang seems to me like an event of infinitesimally small probability. Therefore, it is highly likely that we are the only planet with life in the observable universe. Perhaps you could consider this reflection of mine for your next Q&A video

@frasercain

Ай бұрын

I've talked about this quite a bit. I think we're the only life in the observable universe

@illogicmath

Ай бұрын

@@frasercain Yes, and unfortunately we are destroying nature. In any case, after this plague called humanity passes, life on the planet will recover, other species will emerge and eventually everything will end when the sun exhausts its fuel. But there will be life in some other part of the unobservable universe, which is most probably infinite, and therefore even if the probability of life developing on a planet is very small, since the universe is infinite there will always be life and consciousness in some other part of it

@HansDunkelberg1

Ай бұрын

Earth's life has not come along shortly after the Big Bang. On the contrary! The universe is a little over 13 billion years old, and life has begun to develop on Earth only perhaps three billion years ago.

@HansDunkelberg1

Ай бұрын

@@frasercain Have you forgotten a "don't" between "I" and "think"? If not, could you tell me a few crucial points?

@illogicmath

Ай бұрын

@HansDunkelberg1 Yes, the universe is sbout 13.8 billion years old and life on Earth started around 3.8 billion years ago, so there’s like a 10 billion year gap but that’s nothing when you think about all the crazy stuff that had to happen for life to show up 1. Stars had to form and make the heavy elements we need for life 2. Our solar system is in a chill part of the Milky Way, away from the dangerous radiation in the center 3. Our sun is just the right kind of star, stable and longlived unlike a lot of other stars 4. We needed to get and keep water 5. Plate tectonics is super important, it recycles carbon and keep the climate stable over time 6. Earth has a magnetic field that protects it from solar and cosmic radiation 7. The large moon keeps Earth’s tilt stable, which means stable seasons, and its tides might have helped early life 8. The tmosphere had to get the right mix of gases 9. Complex organic molecules needed to form from simpler ones, and that’s really specific 10. Proteins and DNA had to come together in just the right way, which is super complex and improbable 11. Simple molecules had to turn into complex cells with membranes and everything 12. Eukaryotic cells needed to form through symbiosis, where different cells started working together 13. Jupiter helps out by deflecting big asteroids that could’ve smashed into Earth and messed everything up The list goes on. Finally, if life kicked off 3.8 B years ago, this is a mere 700 million years after Earth formation, which is a surprisingly short period of time don't you think? So yeah, those 10 billion years are like nothing when you think about all the crazy, unlikely stuff that had to happen for life to get going here. It really makes you think life might be super rare in the universe, backing up the Rare Earth Hypothesis

Ugh.. we will never terraform Mars because it has no real atmosphere, and because the core has solidified, it doesn't have the magnetic shield to prevent the sun from cooking the planet.... even if you were able to create atmosphere top some degree, the sun and the lack of magnetosphere it would just float away into outer space... so yeah.. unless you are living under a dome, you aren't living on Mars. So why does terraforming continue to be discussed as if it is a possibility???

@20:11 In fully expendable form, Starship is already good to launch payloads correct?

@frasercain

Ай бұрын

Yeah, it could do 200T in expendable mode

About the eyeball planet, your numbers are false : if the density is 20% less, then the size and mass compared to earth's can't be 1.7 times and 5.6 times. One of these 3 numbers is false. BTW, with 1.7 and 5.6, this gives a gravity of almost 2 times that of the Earth (1.94) and the density would be 14% more than that of Earth.

Enter, the Mars envirnmentalists....

@HansDunkelberg1

Ай бұрын

Agitating against an introduction of invasive species, or what do you mean?

What is "zed"?

@frasercain

14 күн бұрын

Americans call it "zee." The last letter of the alphabet.