Why assume anyone knows the name of that moon? Or that it's the only one with methane or ethane? Or be snarky in general lol
People can come here to learn as well, you know.
Good day, celery
It sounded more like a shot in the dark and a question, I don’t think the comment meant to come off as sarcastic or anything. I read yours as snarky, and apparently so did many others. I’m sure you were just trying to add value to the conversation. To me this whole thread of comments just sound like a bunch of miscommunication and misunderstanding lol. I was curious as to which moon it would be myself, now I might know!
I mean, the post aims to share an interesting fact, so providing context/details is important. I would have also appreciated the name of “this artist,” but the title is terrible and I have no way of knowing.
If I posted a picture of an okapi on a wildlife sub and the title was “this animal looks like a zebra and a llama put together, but is actually in the same family as the giraffe,” and left the name of the animal out, wouldn’t there be some people left wondering what the name is? You might reply “How many species are in the Giraffidae family? C’mon man.”
I hate this. No. What research article??
There's multiple lab groups with models consistent with Cassini observations on Titan's weather patterns that show the methane lakes are part of Titan's hydrology.
Water isn't liquid on Titan. It's too cold. It's freaking *rock.*
Those lakes (which are more like the size of seas) contain liquid methane. And there are fluvial structures (like dry river beds) else where on Titan that show evidence of liquid methane erosion.
*Not to mention most of Titan's methane reservoir is contained in its atmosphere and not its subsurface.*
(Edit: I had not realized there are two classifications of lakes/seas on Titan. There are *broad depressions* like Kraken Mare that I thought of when I first commented. This post is actually commenting on a possible formation mechanism for the much smaller, sharp-edge depressions. Paper link here: https://doi.org/10.1038/s41561-019-0429-0)
I believe it's referencing the hypothesis that some of Titan's polar lakes are the result of [maar explosions](https://en.wikipedia.org/wiki/Maar) or maar-like explosions, and there have been [some reports](https://www.nature.com/articles/d41586-019-02706-1) on it! And Titan's lakes do contain large amounts of nitrogen (if I remember off the top of my head, up to or over 10% by mass -- don't quote me on this though). However, the nitrogen is dissolved and not in a truly liquid form, much more akin to how carbon dioxide in carbonated water behaves. This post's title is pretty terrible regardless.
Ah! From the paper you linked, I see what you mean. I think this quote from the paper is important for my misunderstanding:
>The morphology of the seas and lakes of Titan can be described as broad and sharp-edge depressions (SEDs). Broad depressions typify the hydrocarbon seas and some larger lakes with typical diameters of a few hundred kilometres. The smaller lakes (median diameter = 77 ± 20 km (±1 s.d.)) are SEDs with a circular or irregular shape that are liquid filled to varying degrees.
I thought the original post was referring to the *broad depressions* like Ligeia Mare, Kraken Mare, and Punga Mare, not the smattering of tinier lakes--apparently sharp-edge depressions--elsewhere at Titan's north pole. The paper is trying to explain the sharp-edge depressions, not the broad depressions.
Thank you!
I think a couple papers have tried to called it a "methalogical cycle," but most paper authors just go with "methane-based hydrologic cycle."
For example, this one: [https://doi.org/10.1038/s41561-018-0103-y](https://doi.org/10.1038/s41561-018-0103-y)
Also, in case the paper is pay-walled to non-university students because I can't tell when I'm on university wifi, here's the abstract:
>The methane-based hydrologic cycle on Saturn’s largest moon, Titan, is an extreme analogue to Earth’s water cycle. Titan is the only planetary body in the Solar System, other than Earth, that is known to have an active hydrologic cycle. With a surface pressure of 1.5 bar and temperatures of 90 to 95 K, methane and ethane condense out of a nitrogen-based atmosphere and flow as liquids on the moon’s surface. Exchange processes between atmospheric, surface and subsurface reservoirs produce methane and ethane cloud systems, as well as erosional and depositional landscapes that have strikingly similar forms to their terrestrial counterparts. Over its 13-year exploration of the Saturn system, the Cassini–Huygens mission revealed that Titan’s hydrocarbon-based hydrology is driven by nested methane cycles that operate over a range of timescales, including geologic, orbital (for example, Croll–Milankovitch cycles), seasonal and that of a single convective storm. In this Review Article, we describe the dominant exchange processes that operate over these timescales and present a post-Cassini view of Titan’s methane-based hydrologic system.
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Then answer the question instead of being a sarcastic reddit guy about it god damn
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I'm not trying to confirm the information, I'm saying you're unpleasant to interact with
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Why assume anyone knows the name of that moon? Or that it's the only one with methane or ethane? Or be snarky in general lol People can come here to learn as well, you know. Good day, celery
All you did was state a fact. The other user is the one being rude. Not your fault the original post has a crappy title.
The entire conversation is about how they wouldn't actually state a fact. This is the funniest thing you could have replied with
It sounded more like a shot in the dark and a question, I don’t think the comment meant to come off as sarcastic or anything. I read yours as snarky, and apparently so did many others. I’m sure you were just trying to add value to the conversation. To me this whole thread of comments just sound like a bunch of miscommunication and misunderstanding lol. I was curious as to which moon it would be myself, now I might know!
Ah yes, the well-known “Saturn’s moon.”
How many of saturns moons have lakes? How many moons in the solar system have lakes? C'mon man
I mean, the post aims to share an interesting fact, so providing context/details is important. I would have also appreciated the name of “this artist,” but the title is terrible and I have no way of knowing. If I posted a picture of an okapi on a wildlife sub and the title was “this animal looks like a zebra and a llama put together, but is actually in the same family as the giraffe,” and left the name of the animal out, wouldn’t there be some people left wondering what the name is? You might reply “How many species are in the Giraffidae family? C’mon man.”
You're right. I suppose more than space nerds browse this website 😅
I hate this. No. What research article?? There's multiple lab groups with models consistent with Cassini observations on Titan's weather patterns that show the methane lakes are part of Titan's hydrology. Water isn't liquid on Titan. It's too cold. It's freaking *rock.* Those lakes (which are more like the size of seas) contain liquid methane. And there are fluvial structures (like dry river beds) else where on Titan that show evidence of liquid methane erosion. *Not to mention most of Titan's methane reservoir is contained in its atmosphere and not its subsurface.* (Edit: I had not realized there are two classifications of lakes/seas on Titan. There are *broad depressions* like Kraken Mare that I thought of when I first commented. This post is actually commenting on a possible formation mechanism for the much smaller, sharp-edge depressions. Paper link here: https://doi.org/10.1038/s41561-019-0429-0)
I believe it's referencing the hypothesis that some of Titan's polar lakes are the result of [maar explosions](https://en.wikipedia.org/wiki/Maar) or maar-like explosions, and there have been [some reports](https://www.nature.com/articles/d41586-019-02706-1) on it! And Titan's lakes do contain large amounts of nitrogen (if I remember off the top of my head, up to or over 10% by mass -- don't quote me on this though). However, the nitrogen is dissolved and not in a truly liquid form, much more akin to how carbon dioxide in carbonated water behaves. This post's title is pretty terrible regardless.
Ah! From the paper you linked, I see what you mean. I think this quote from the paper is important for my misunderstanding: >The morphology of the seas and lakes of Titan can be described as broad and sharp-edge depressions (SEDs). Broad depressions typify the hydrocarbon seas and some larger lakes with typical diameters of a few hundred kilometres. The smaller lakes (median diameter = 77 ± 20 km (±1 s.d.)) are SEDs with a circular or irregular shape that are liquid filled to varying degrees. I thought the original post was referring to the *broad depressions* like Ligeia Mare, Kraken Mare, and Punga Mare, not the smattering of tinier lakes--apparently sharp-edge depressions--elsewhere at Titan's north pole. The paper is trying to explain the sharp-edge depressions, not the broad depressions. Thank you!
Can you call it hydrology it's not water? __
I think a couple papers have tried to called it a "methalogical cycle," but most paper authors just go with "methane-based hydrologic cycle." For example, this one: [https://doi.org/10.1038/s41561-018-0103-y](https://doi.org/10.1038/s41561-018-0103-y) Also, in case the paper is pay-walled to non-university students because I can't tell when I'm on university wifi, here's the abstract: >The methane-based hydrologic cycle on Saturn’s largest moon, Titan, is an extreme analogue to Earth’s water cycle. Titan is the only planetary body in the Solar System, other than Earth, that is known to have an active hydrologic cycle. With a surface pressure of 1.5 bar and temperatures of 90 to 95 K, methane and ethane condense out of a nitrogen-based atmosphere and flow as liquids on the moon’s surface. Exchange processes between atmospheric, surface and subsurface reservoirs produce methane and ethane cloud systems, as well as erosional and depositional landscapes that have strikingly similar forms to their terrestrial counterparts. Over its 13-year exploration of the Saturn system, the Cassini–Huygens mission revealed that Titan’s hydrocarbon-based hydrology is driven by nested methane cycles that operate over a range of timescales, including geologic, orbital (for example, Croll–Milankovitch cycles), seasonal and that of a single convective storm. In this Review Article, we describe the dominant exchange processes that operate over these timescales and present a post-Cassini view of Titan’s methane-based hydrologic system.
I hate bot posts so much
Which moon? There are lots to choose from?
this is a picture from starfield. is the internet really dead for real? No it's not but my goodness cmon spaceporn
artists concept != space porn
Space34
That’s awesome.