Slashdot Mirror
Probe Shows Jupiter Moon 'Puking' Into Space
Tablizer writes "The New Horizons probe caught the moon Io in the act of 'barfing' into space. A five-frame sequence from the New Horizons probe captured a beautiful plume of ash from Io's Tvashtar volcano. "Snapped by the probe's Long Range Reconnaissance Imager (LORRI) as the spacecraft flew past Jupiter earlier this year, this first-ever "movie" of an Io plume clearly shows motion in the cloud of volcanic debris, which extends 330 kilometers (200 miles) above the moon's surface ... The appearance and motion of the plume is remarkably similar to an ornamental fountain on Earth, replicated on a gigantic scale.""
It's probably just dizzy from all that spinning.
So... The demotion of Pluto has finally reached Jupiter?
One CS student VS 893 DOS games: Let's play oldies
So, why does the summary title and text use the terms "puking" and "barfing" when the article itself doesn't make any such references? Gratuitous? "Submitter's license"?
I mean, was that really necessary? Or is the story not interesting enough itself without toilet humor?
Dude!!! If only I had a boogie board, then I could ride the ash fountain to the top! What? George Lucas wants to use the idea for his next Starwars movie? Bummer :(
Life is not for the lazy.
When did "puking" and "barfing" become scientific terms? Wouldn't "ejaculate" be a more appropriate term?
So which is it? Puking or barfing? The summary leaves me confused.
If you want news from today, you have to come back tomorrow.
He's just trying to break wind--I mean step with the usual Slashdot submitters.
You can hold down the "B" button for continuous firing.
I wonder if that's because it got a good look at Uranus?
"It's a tarp!" -- Dyslexic Admiral Ackbar
...the slutty drunken sorority moon of Jupiter.
Step 1: Find a science story about a well-observed and described phenomenon. :) :) :)
Step 2: Add a purile, irrelevant adjective, one that will set you apart from the pack.
Step 3: Write it up. Hello, interwebz. Let's move some ads!
Step 4: News aggregate sites filter out the best from all the... oh wait, here comes Zonk. Go, go Slashdot!
Step 5: Profit!
that the universe is a living thing and that we are just microbes.
Too much space mead?
Kwisatz Haderach
Sell the spice to CHOAM
This Mahdi took Shaddam's Throne
It's full of puke.
I'm amazed by this short sequence.
Considering the distance it's a real neat proof of excellent space ship engineering.
Looking at the hight to which the venting reaches this is one hell of a volcano!
"The likes of Facebook and WhatsApp are free to those whose privacy is of zero value."
I don't have anything thoughtful to add about this, so I think I'll just do the cool thing and mock the title of the article. heh. it said puke.
Is there any way to privately donate money for the purpose of sending probes, rovers and such to other moons and planets?
At first I thought the direction of motion of the debri was from right-to-left. However, watching the animation loop for a while, it now appears that it is coming from the middle-to-right center of the plum and spreading out, but below the visible horizon. It is coming up, over the edge as it spreads out.
Table-ized A.I.
I prefer Ralphing.
For a science that's so concerned about nomenclature (i.e. Pluto) how does puking or barfing even get used by a writer?
Io, one of the moons of Jupiter, showing a volcanic eruption on the rim, 1979.
you had me at #!
I wonder how much mass Io lost when that thing blew up.
Finally, we have found the true source of global warming!!!
tomesnyder
This movie is one of the best observations of Io's plumes taken. You can clearly see dust clumping within the plume and how those structures evolve over the 8-minute sequence. Galileo could have taken many movies like this, had it not been for the low bandwidth thanks to the broken high-gain antenna. This same praise can't be said for the description used in this article. First, this image was released almost a month ago. While very cool, and I'm certainly happy for Io to be discussed here (Uranus jokes not withstanding), but this is not news. Second, puking and barfing? Couldn't we use better terminology than puking and barfing... Makes Io sound ill, not the cool place it really is.
The Gish Bar Times - Blog covering Jupiter's moon Io
put the distance in kilometers?
I'd say it was more pissing on itself. We may be witnessing the solar systems spring break.
Task Mangler
Stupid mistake, thx ;)
Somehow I had it in my head that it was Viking. I remember seeing the pictures in National Geographic at the time - I'm sure the Io volcano was a cover image.
you had me at #!
Many of us carry tiny mobile phones that are capable of better quality video. Why is the image data and video data returned by these probes so poor?
Well ok a phone cam only has to work a few meters in good lighting. Never the less, the size, power and bandwidth requirements for decent video is being reduced, in part by the consumer electronics industry. So what is the limiting factor these probes?
What you are seeing in this image is mostly sulfur and sulfur dioxide that has condensed out of the gas in the plume. There is also a mix of basaltic ash. The plume consists of gas and dust that escapes from an erupting lava curtain on the surface.
The Gish Bar Times - Blog covering Jupiter's moon Io
"Uranus spewing gas and fluid emissions"
Libertas in infinitum
"Pissing Into The Wind" -: A body the ejects material into space, only to have the same ejected material return to the same body that ejected it.
I think that would accurately describe what is going on in the article.
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I think that the description of this article is a lowpoint for SlashDot submissions.
Knowing Google's lust for data collection, the Soviet Union is still alive and well inside the psyche of Sergey Brin....
You're so right. Why didn't it say "ejaculating into space?"
No the movie is already magnified by 2x from the original data. Here is an example of one of the images that went into this movie: http://pluto.jhuapl.edu/soc/data/jupiter/level2/lo r/jpeg/003509/lor_0035099189_0x630_sci_1.jpg
The Gish Bar Times - Blog covering Jupiter's moon Io
Tvashtar? is that its Vulcan name?
What do we call it in English?
They're using their grammar skills there.
I believe I inadvertantly posted to the wrong discussion.
https://www.eff.org/https-everywhere
It isn't smoke; there's no atmosphere to suspend the smaller particles, and no turbulence to disrupt the parabolic trajectory. That means the plume isn't randomly shaped and opaque like a billowing smoke plume on Earth, it's more like a fountain (as it says in the article, and as the GIF shows: smoke on Earth doesn't billow down, you're seeing particles purely under the influence of gravity).
Now, because there's no suspended material (smoke), the amout of light the plume reflects is determined purely by the cross-sectional density; that is, the more particles there are in a given horizontal slice, the brighter that area appears. That region of greatest density is where the particles are moving slowest in the vertical plane, which happens to be the top of the parabolic arc (exactly like a fountain; you can test this with a garden hose, if you like, the water will appear to be most dense where gravity kicks in and the flow turns back on itself. Same principle).
The lack of smoke has one other implication: without a dense, opaque cloud of randomly moving fine particles to block light as it moves through the plume, light is reflected almost evenly from all sides; hence no prominent shadow (flying rocks don't cast much of a shadow).
So in theory, on an airless moon a volcanic plume seen side-on should have a moderately thick "base" where the material is ejected, an almost opaque looking umbrella-shaped cap where the particles are slowing and beggining to fall back, and a much thinner outer region, with almost negligable shading because there's no smoke. By a curious coincidence, that's what the photos show.
If it looked like a volcano on Earth it would be a fake.
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Great description. One comment I have is that these plumes can cast a shadow, see this image of the Prometheus plume (a smaller plume about 75-100 km height): http://photojournal.jpl.nasa.gov/catalog/PIA00703 .
The Gish Bar Times - Blog covering Jupiter's moon Io
Why yes, you did. :)
You're too kind (and fast!). Of course it's true they do cast a shadow, but compared to smoke it's nowhere near as intense, and again it's a function of density so the light has to be at exactly the right angle; the inverse of what we see in these images, really. I probably oversimplified that point, so thanks for mentioning it.
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Whoever named that feature the Trashtalk Volcano knew too much...
This issue is a bit more complicated than you think.
Yeah, don't you just hate it when something promises enlargement and results in something that's exactly the same size. I hate when that happens. I suppose we'll simply have to accept the fact that it's as big as it's going to get.
Wait... What?
Particularly since the wording of the post seems to the main topic of conversation anyway. I have no particular objection to the wording of the post, but the quotes imply that the words came from the article, which they didn't. The first thing I did when I saw this post was to follow the link and search for "puke", thinking "NASA didn't say that, did they?!?!??".
"The Milliard Gargantubrain? A mere abacus - mention it not."
How much of that ejecta will end up in space, and how much will fall back onto Io? From what I could see, it looked like most of it was arcing back down onto the surface, although that might be the result of a trick of perspective.
Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.
In other news-
/.ers alwayz remind us of this ickey stuff?
It was reported that Mount St Helens like, barfed all over Washington State about 25 years ago!
Like about fifty people (more or less) were killed by the puke!
Ewww.. gross! Why do you nerdy
- Ze Laws ov Termodynamics? BAH!
Kelvin vas a fool!
Mit Hydrogen + Pinoqachole ve can break zes laws anytime!
I see.
That's why you are posting here.
http://www.dieblinkenlights.com
Or perhaps more interestingly arranged: "The appearance and motion of an ornamental fountain on Earth is remarkably similar to the ash plume of an enormous volcano in a low-atmosphere environment, replicated on a terrestrial scale."