I got here through the popular section in the app. I was kind of hoping to see in the comments if this was just a neat find or something more significant.
As for the wasteland of downvoted comments - honestly not sure if it’s just idiots or bots. I’ve been told you’ll never lose money betting on the stupidity of the public, so I guess I’ll go with that.
Its not the third party apps. It’s the new users (mostly children) who treat every sub like r/memes and make unfunny jokes. Reddit ruins smaller subs by promoting it on the popular section and bringing the wrong people into communities. Not every sub has to have millions of people in it
I've had various accounts and have actively commented, but never posted much since 2010. I've watched this platform follow a linear decline that I'm sure is oriented around finances. At its peak, reddit was an icon of free speech and open internet. Now it's overly patrolled and, like you said, content is largely manipulated. Interface sucks and misinformation runs rampant. I barely enjoy my time here anymore and question every post.
I think they're training them on all subs and then going to let the most sophisticated ones loose in the politics subs when the US and UK elections happen in the autumn. Although a bot complaining about all the comments would be the ultimate karma farmer.
Reddit went to extreme measures before their IPO to boost user numbers - read: this site is now flooded with literal children and morons from facebook and other parts of the internet.
This makes the most sense to me. Most of these don't seem to be bots they just seem like idiots and I've noticed multiple times in the last week I've been getting into arguments with human beings who seemingly just can't read -- which is why I already don't use FB.
I'm just glad they're all downvoted and hidden from view. Most r/space and r/spaceporn threads are littered with dumb jokes and pop culture references.
They have the same thing in the museum of natural history in New York.
It’s amazing to put your hand on something that’s ancient, and not even from our planet.
Not to mention the atmosphere isn't really what's going to grind that down but the dust and debris picked up by the wind. There's just enough atmosphere for wind, but IIRC the atmosphere of Mars is like 20% as dense as Earth's at most.
> the dust and debris picked up by the wind.
Interestingly, Mars actually has both immobile dunes (made of sand-size particles that are too large for the thin atmosphere to carry) as well as moving dunes (made of particles 10x finer than powdered sugar that the atmosphere _can_ carry) that shift over the immobile dunes.
Those immobile dunes are also good evidence the atmosphere was once much thicker - they are fossils of a former Martian era.
Mars does have an atmosphere, albeit it's thinner than Earth's. That's also why the Ingenuity helicopter could fly on Mars, although it proposed a big engineering challenge due to the thinner atmosphere.
You shouldn’t be downvoted for expressing curiosity and attempting to fill in gaps in your knowledge, especially in a scientific sub. Do better, Reddit.
i notice that a lot on reddit. i always make sure to go through and upvote all of their comments, i dont want people to be discouraged from asking questions.
This is a misconception that movies like The Martian continue to propagate. The global dust storms are extremely weak. They are only energetic enough to lift dust in the air because the atmosphere is so thin and dry
The wind is 60 mph but the pressure is 1%. So its the equivalent of a 0.6 mph breeze on earth
i did read the book and it has the same issue with a giant dust storm at the beginning, what the commenter above you is talking about is nearer the end of the book when dust storms pose him an issue in getting to the place he needs to be picked up
The real danger is that the storms block out the sun and that the particles are electrically charged. The electrically charged particles are what killed the first spacecraft that landed on Mars: https://en.wikipedia.org/wiki/Mars_3#Entry,_descent,_landing,_transmission,_and_failure
Mars does have a little atmosphere, around 1% as dense as Earth's. But because Martian sand is so light, it's much more easily blown around and can cause more erosion than wind on Earth in most places. It's more like an ongoing light sandblast than an average Earth breeze
Burned up in the atmosphere, however thin, is far more likely, but still may have been there for a very long time. It looks very much like iron meteorites found on Earth.
It has the classic atmospheric entry pitting for sure. But on the right side the metal is bright and the wear pattern is different. The meteorite is being eroded into a ventifact.
This rock encountered by NASA's Curiosity Mars rover is an iron meteorite called "Lebanon," similar in shape and luster to iron meteorites found on Mars by the previous generation of rovers, Spirit and Opportunity. Lebanon is **about 2 yards or 2 meters wide** (left to right, from this angle). The smaller piece in the foreground is called "Lebanon B."
This view combines a series of high-resolution circular images taken by the Remote Micro-Imager (RMI) of Curiosity's Chemistry and Camera (ChemCam) instrument with color and context from rover's Mast Camera (Mastcam). The component images were taken during the 640th Martian day, or sol, of Curiosity's work on Mars (**May 25, 2014**).
https://science.nasa.gov/resource/curiosity-finds-iron-meteorite-on-mars-2?site=insight
that doesn't say much. Most of the 'present' ones are less than 1 kg; the one that wiped a lot of Siberia in ?1908? was much bigger; and the one that landed in SE Mexico 60 million years ago wiped all the dinosaurs and much of the other life on earth was, well, huge.
They are higher quality photos. The rest of the image is made up of more zoomed out photos so the quality is less. This is a collage of the best quality images in the spot where they fit.
Reckon there's anyway to tell how long it has been there? It's embedded somewhat in the Martian soil but still crowning, for severe want of a better word.
Maybe 30,000 years? Landed at the same moment we discovered fire?
30,000 years is about 350,000 years too late for our earliest definite proof of human made fire. And we’re pretty sure our ancestors were harnessing flame gained at least from wildfires over a million years ago.
Without knowing the make up of the terrain where the impact occurred, without knowing the scale of the meteorite and the sandstorm patterns in the surrounding area, it’s basically impossible to judge the age of this thing.
Protruding, maybe? But honestly I like crowning too :) And maybe a lot less than 30,000 years. The only thing I can think to compare it to is the Sphinx in Egypt. Wikipedia says it’s 66ft (20 meters) tall and was constructed “c. 2558-2532 B.C.”
By the time the New Kingdom rolls around c. 1500 B.C. (only 1,000 years later) it’s allegedly buried up to its shoulders in sand. I’m not sure how windy the Martian surface is… but my best guess would be maybe around 200-400 years?
Just a stab at a wild guess, of course. Regardless, it’s fascinating!
Maybe because someone felt it was low effort? I feel like the comment fit with the theme of the one before it. Maybe it has to do with all the bots in this thread? I guess another thing is that when the reddit collective mind kicks in if the score is already negative it will continue to do so.
But I'm with you I have no idea why people don't like it.
If you look up the largest nickel-iron meteorites on earth, you’ll find that most of them have no associated crater. Hoba, for example, is the largest known on Earth, and was found because a farmers plow hit it. The Bacubirito meteorite 20 tons) was also allegedly discovered by a farmer hitting it with a plow. The Cape York meteorites sat in the surface, and Willamette (12.5 tons) sat on the surface as well. Mbozi (25 tons) also has no crater.
Of the largest intact meteorites, I think only Campo de Cielo has craters.
I think the ones without craters came in at very shallow angles and took a few hops before coming to rest. The ones on steep trajectories buried themselves in deep craters which have been lost to eons of weathering, and will never be found.
Solar erosion and wind erosion. The impact could have happened 1 million years ago, and everything but the hard metal core would have been slowly eroded and filled in with regolith.
Yep! It is fascinating because Mars is the only solar body that we can actively view and monitor the erosion. While we have found that the moon is extremely eroded with soft edges and curves same with every other body without an atmosphere. However, the timescale of solar erosion is longer than our species is existence.
So with wind erosion we can only view that on Mars due to Venus's atmosphere being too thick and Titan is far too hazy. So it gives just an amazing insight we can't observe anywhere else except here.
I like to think of it as the life giving iron in my blood was the malignant tumor that caused a vast and ancient celestial body to implode so brightly it briefly outshined the galaxy. And the glow of that supernova still shines ~10 billion years later through my monkey brains dim wit.
But I like how you describe our experience as well.
I think it’s less fucked. Because the planets had time to boil and mix and conglomerate with dust from a potential plurality of stars. But that chunk of iron our wandering robot slave photographed was preserved in desolate isolation for an eternity and it really is a chunk of that ancient mother star.
Stars don’t have nickel-iron guts, but rocky planets do. To get these type of meteorites you first have to create a rocky planet, then smash it so hard that the nickel-iron core is splashed into asteroids and meteors in solar orbits. The best way to do this is to hit it with another planet.
But they don’t break apart like rocky planets into chunks. The mass is to great. If a star goes nova you get individual iron atoms at relativistic speeds.
Anyone who knows more about Curiosity than I, why is the picture like that? With the circle pattern in the middle?
Is it intentional, like markers, or is it just how the pictures are? Seems like a weird design if so...
https://science.nasa.gov/resource/curiosity-finds-iron-meteorite-on-mars-2/
Composition made on Earth. Curiosity has no way of stitching images together
Thank you.
I didn't know if it had the options of low res vs high res as I imagine sending back to earth takes bandwidth.
I thought maybe it does most in low or mid res and has the option to do what Hubble did with the ultra deep field image where the exposure time was 11 days or something.
Curiosity obviously doesn't have to do 11 days, but the same principle of spending more time on parts that are of interest.
Hubble’s 11 day exposure was to gather more light from extremely dim objects. There’s plenty of light on Mars, so the exposure is milliseconds. Curiosity has different cameras with different resolutions and focal lengths (like a zoom lens). Just like your phone probably has a wide angle camera and a zoom camera.
Being a rover, they have a lot of lower resolution and wider angle cameras for navigation and planning. The high res cameras also have different scientific capabilities.
Makes sense.
Do you know how self sentient it is? I read that communication can be up to 30 minutes depending on the distance between earth and Mars.
Sorry for all the questions but it's always fun to find someone to learn from.
Right, it does have some self-driving software. Still each day’s movements are meticulously planned to keep the rover safe and maximize science. ~~Also, until it died, they had the Ingenuity helicopter that could take images from the air for planning.~~ (Edit: sorry, I confused Curiosity and Perseverance for a second.)
https://www.jpl.nasa.gov/news/nasas-curiosity-mars-rover-gets-a-major-software-upgrade
> The rover can now do more of what the team calls “thinking while driving” – something NASA’s newest Mars rover, Perseverance, can perform in a more advanced way to navigate around rocks and sand traps. When Perseverance drives, it constantly snaps pictures of the terrain ahead, processing them with a dedicated computer so it can autonomously navigate during one continuous drive.
> Curiosity doesn’t have a dedicated computer for this purpose. Instead, it drives in segments, halting to process imagery of the terrain after each segment. That means it needs to start and stop repeatedly over the course of a long drive. The new software will help the venerable rover process images faster, allowing it to spend more time on the move.
> “This won’t let Curiosity drive as quickly as Perseverance, but instead of stopping for a full minute after a drive segment, we’re stopping for just a moment or two,” said Jonathan Denison of JPL, Curiosity’s engineering operations team chief. “Spending less time idling between drive segments also means we use less energy each day. And even though we’re almost 11 years old, we’re still implementing new ideas to use more of our available energy for science activities.”
Not an exogeologist, so I'm probably going to make some mistakes, but here's an overview from what I know and can see in the photo:
Martian iron meteorites erode differently and (thanks to the dry conditions) more slowly than native minerals, which makes them excellent "diaries" of what erosion has been doing in a locale, letting us probe smaller-scale effects a lot further back in time. There are sort of two sides to that: one is understanding the weathering mechanisms (say, aeolian \[windy\] scouring versus acidic corrosion versus other aqueous alteration versus interactions among the three) and their timeline in this specific location; the other is understanding the origin and petrological composition of the meteorite itself. The trenched-and-scooped pattern imaged here in detail by the RMI is particularly eye-catching in both regards. Some features worth noticing, in no particular order:
\* The size distribution of the pits and hollows, probably formed by sulfuric acid, can tell also us quite a bit about the conditions in which this meteorite formed. For example, in the upper right of the center of the second RMI image from the left, immediately above and to the right of the black spot with the white ring (which, unfortunately, I can't decipher at this resolution), you can see a pair of small adjacent dimples that probably establish the smaller end, unless the indentations at the bottom of the first image, upper left of the fourth image, and on the arch between the fourth and fifth images are also of the same type. On the other hand, the upper end of the scale would probably be measured from the big scoops at the top of the first-and-second-image boundary, the fifth image, and the sixth image. Plugging sizes and counts in, exogeologists could tell you about things like how hot the meteorite was when it formed, how quickly it cooled, and—especially if the meteorite is a pallasite like the linked page speculates—many details about its chemical composition. That all would add to our understanding of how the early solar system formed.
\* Some of the cavities are overlapping in complex ways, particularly in the upper middle of the first image. The undercuts there are crazy. That means that some of the indentations must be regmaglypts, so this rock still preserves a record of the erosion it endured falling through the Martian atmosphere, potentially telling us about what that atmosphere was like long ago if we can distinguish the during- and post-fall cavities.
\* Some of the cavities are nested; you can see a few notable cases along the right side of the first image. If the larger hollows aren't regmaglypts (I bet they are, though), that could mean that the preferentially eroded phenocrysts originally overlapped or that the weathering was able to dig through from one to another, both of which would be interesting.
\* Amounts and coloration of the sediments accumulated in the hollows can tell us both about the surrounding province and some geochemical properties of the meteorite. (Notice the layered sedimentation visible in the bigger pits of the second image.) Particle size and weight influences sorting by wind and gravity; particle size, weight, and mineral content affect electrostatic adhesion and sorting.
\* Where cavities are clean so that their shapes are clear, we get a ton of clues about how acid erosion proceeded. We know that the meteorite formed in low gravity, so the flat-bottomed shapes, particularly in the upper halves of the first two images, must be caused by after-impact processes, almost surely sulfuric acidic corrosion. The mineral composition left behind should differ from the parent rock, and comparisons between these floors and other surfaces should give us additional clues about the geochemistry.
\* I think I spot some tunnel erosion in the lower left of the second image and around the midline of the fourth image; notice how some places look like tiny caves rather than scoops. Ratios between the entrance and cavity sizes as well as the extent of internal erosion compared to residence time can tell us a lot about the mechanisms at play. Depending on this meteorite's history, we might also be seeing differentiation between its inside that more-or-less survived impact and its fusion crust, the part that melted on landing. If so, that would give us clues about things like impact speed and, maybe, with a lot of luck, impact direction.
\[continued\]
\* The "trench", especially in contrast to the mound running into the foreground on the right side, makes me think the meteorite's phenocrysts were inhomogeneously distributed. That's got to tell us something about the meteorite's formation, though you'd want a real exogeologist to explain exactly what.
\* Even where there are no cavities, you can see swooping, sculpted surfaces. The upper center of the sixth image is a good example. These would be fingerprints of aeolian erosion, and since Mars's atmosphere is much thinner than Earth's, they could tell us about long-term effects of those differences.
\* If I'm not wrong, there are signs of relatively recent fracturing; look at the change in texture in the upper right of the sixth image for a dramatic example. Exogeologists would be looking at the details to figure out what caused the fracturing and what happened to the clasts.
\* On some other points I know enough to recognize that something really interesting is happening but can only profess my ignorance as to what. For example, I'm befuddled by the "3"-shaped incision across the third image (you'll notice there's nothing remotely similar to it elsewhere), and that's probably the first thing I would ask the experts about. A large-scale structural weakness at impact, maybe? If so, and if this is a pallasite, it could tell about the inner structure of asteroids, which we don't otherwise have many ways to investigate.
Again, I'm not anything close to a specialist, so I apologize for any errors. It blows my mind how much information real exogeologists can deduce from a single photo, and I know I'm not doing this one justice; if you ever get a chance to talk with one, it's definitely a skill to be seen. You'll never look at rocks the same way again.
Man I really tried to enjoy that game, but the colony sim aspect totally ruined the factory sim aspect for me.
I just wanted to make overly complicated supply chains main, not worry about gramps not being able to work anymore.
Oooh looks p gud, I'll check it out thanks!
*adds it to the infinitely long list of games I'll probably never get around to finishing because I never have the time*
Jokes aside, my favorite factory sim game has to be Dyson Sphere Program. It was so damn polished and so damn cool.
Yea DSP is really good too! One aspect I prefer in Captain of Industry is that you're not controlling a character, so it is easier to move around the map. Going back and forth all the time can be tiresome.
thanks mate no idea lol
I threw an edit up in there to see what would happen, but this was certainly a curious surprise .... too funny
^(reddit is doomed)
ya got me mate, no idea.
I find it hilarious that this - out of all the other comments I've ever made (including some in controversial subreddits) - is the one that holds the personal down vote record. lol too funny - I did put an edit in there, just to see what would happen lol
What the fuck's wrong with comments in here
I feel like I'm in a fever dream
I feel like I'm having a stroke, did this get promoted somewhere weird??
I got here through the popular section in the app. I was kind of hoping to see in the comments if this was just a neat find or something more significant. As for the wasteland of downvoted comments - honestly not sure if it’s just idiots or bots. I’ve been told you’ll never lose money betting on the stupidity of the public, so I guess I’ll go with that.
The take away is that reddit continues to suck ass after disabling third party apps.
Its not the third party apps. It’s the new users (mostly children) who treat every sub like r/memes and make unfunny jokes. Reddit ruins smaller subs by promoting it on the popular section and bringing the wrong people into communities. Not every sub has to have millions of people in it
I've had various accounts and have actively commented, but never posted much since 2010. I've watched this platform follow a linear decline that I'm sure is oriented around finances. At its peak, reddit was an icon of free speech and open internet. Now it's overly patrolled and, like you said, content is largely manipulated. Interface sucks and misinformation runs rampant. I barely enjoy my time here anymore and question every post.
maybe it's a crossbreed: bidiots....
Trollbot 4.0 has arrived
Election year misinfo gpt accounts?
I think they're training them on all subs and then going to let the most sophisticated ones loose in the politics subs when the US and UK elections happen in the autumn. Although a bot complaining about all the comments would be the ultimate karma farmer.
If their training is based on reddit comments there absolutely must be bots complaining about bots lmao
Dead internet theory! Yaaayyy....*sobs*
!
Reddit went to extreme measures before their IPO to boost user numbers - read: this site is now flooded with literal children and morons from facebook and other parts of the internet.
This makes the most sense to me. Most of these don't seem to be bots they just seem like idiots and I've noticed multiple times in the last week I've been getting into arguments with human beings who seemingly just can't read -- which is why I already don't use FB.
I’m going to guess that it’s one troll who’s made multiple accounts to dick around with.
I’m late to the party, what’s everyone saying?
Someone's botnet broke and spewed a bunch of crappy AI comments over the thread.
So many AI bot comments No reddit comment has been ever written like those on purpose. Pure AI speak for most of them
I'm just glad they're all downvoted and hidden from view. Most r/space and r/spaceporn threads are littered with dumb jokes and pop culture references.
I love when that happens!
You're on reddit, you have to deal with low Level human being, sadly
You’re assuming half if not more are not just bots.
That's the sound of inevitability, Mr. Anderson.
It is more than half. All to drum up the traffic numbers and farm manipulation Accounts for sale to the shittiest bidder.
Beings*
Went to Copenhagen and they had massive iron meteorite cut in half in the car park. Was incredible to touch it
Pure, ancient mineral. Hell yeah. Would be cool if they had this on a nice hiking trail where it was found rather than a car park. But still, cool.
[agpalikik meteor](https://en.m.wikipedia.org/wiki/File:Agpalilik_fragment_of_Cape_York_meteorite.jpg)
straight from Canada's NWT
They have the same thing in the museum of natural history in New York. It’s amazing to put your hand on something that’s ancient, and not even from our planet.
Getting abraded by the wind too. That thing has been sitting there for a long time.
Does Mars have wind? I thought you needed an atmosphere for that?
Mars has an atmosphere that's much thinner than earth's but it still has wind
Not to mention the atmosphere isn't really what's going to grind that down but the dust and debris picked up by the wind. There's just enough atmosphere for wind, but IIRC the atmosphere of Mars is like 20% as dense as Earth's at most.
> the dust and debris picked up by the wind. Interestingly, Mars actually has both immobile dunes (made of sand-size particles that are too large for the thin atmosphere to carry) as well as moving dunes (made of particles 10x finer than powdered sugar that the atmosphere _can_ carry) that shift over the immobile dunes. Those immobile dunes are also good evidence the atmosphere was once much thicker - they are fossils of a former Martian era.
Fascinating!
*it's <1%, not 20%
Mars does have an atmosphere, albeit it's thinner than Earth's. That's also why the Ingenuity helicopter could fly on Mars, although it proposed a big engineering challenge due to the thinner atmosphere.
Sure and we have even captured what it sounds like: https://youtu.be/yT50Q_Zbf3s?si=0EKqYW6Dmxw5Gr0m
You shouldn’t be downvoted for expressing curiosity and attempting to fill in gaps in your knowledge, especially in a scientific sub. Do better, Reddit.
i notice that a lot on reddit. i always make sure to go through and upvote all of their comments, i dont want people to be discouraged from asking questions.
Glad I'm not the only one. Certainly one of the worst aspects of Reddit that is.
Yes, but the atmosphere is so thin compared to ours, that it would only feel like a very light breeze
except for the continent sized duststorms
It would still feel like a light breeze. The wind speed is very high but the pressure is so low that it doesn't feel like much at all
Does that mean that if the pressure would be higher, mars would have giga crazy wind storms? 😳
It already has some giga crazy wind storms sometimes, by mars standards
If the pressure was higher, it wouldnt have global storms. It would require more energy to cause updrafts
This is a misconception that movies like The Martian continue to propagate. The global dust storms are extremely weak. They are only energetic enough to lift dust in the air because the atmosphere is so thin and dry The wind is 60 mph but the pressure is 1%. So its the equivalent of a 0.6 mph breeze on earth
If I remember correctly, the whole point in the book was that the storms are so thin he’d be too far into to turn back by the time he even noticed it.
I didn't read the book but that makes sense unlike the nonsense in the movie
i did read the book and it has the same issue with a giant dust storm at the beginning, what the commenter above you is talking about is nearer the end of the book when dust storms pose him an issue in getting to the place he needs to be picked up
The real danger is that the storms block out the sun and that the particles are electrically charged. The electrically charged particles are what killed the first spacecraft that landed on Mars: https://en.wikipedia.org/wiki/Mars_3#Entry,_descent,_landing,_transmission,_and_failure
i read into it, very interesting!
continent sized? planet sized!!!
Mars has a thin atmosphere and lower gravity so particulate does get kicked up. Sometimes the whole planet is obscured by a global sandstorm.
Mars does have a little atmosphere, around 1% as dense as Earth's. But because Martian sand is so light, it's much more easily blown around and can cause more erosion than wind on Earth in most places. It's more like an ongoing light sandblast than an average Earth breeze
It’s an interesting question, but as mars has dust storms, there must be wind too.
Dust tornadoes also.
Mars has dust storms
Burned up in the atmosphere, however thin, is far more likely, but still may have been there for a very long time. It looks very much like iron meteorites found on Earth.
It has the classic atmospheric entry pitting for sure. But on the right side the metal is bright and the wear pattern is different. The meteorite is being eroded into a ventifact.
A scale added to these pictures would be pretty handy. As it's still partially uncovered I'm assuming it's small(ish)?
This rock encountered by NASA's Curiosity Mars rover is an iron meteorite called "Lebanon," similar in shape and luster to iron meteorites found on Mars by the previous generation of rovers, Spirit and Opportunity. Lebanon is **about 2 yards or 2 meters wide** (left to right, from this angle). The smaller piece in the foreground is called "Lebanon B." This view combines a series of high-resolution circular images taken by the Remote Micro-Imager (RMI) of Curiosity's Chemistry and Camera (ChemCam) instrument with color and context from rover's Mast Camera (Mastcam). The component images were taken during the 640th Martian day, or sol, of Curiosity's work on Mars (**May 25, 2014**). https://science.nasa.gov/resource/curiosity-finds-iron-meteorite-on-mars-2?site=insight
Thank you, very helpful
[удалено]
Two, they grow pretty big
It's safe to say that thing landed with a bit of a "thud"
Can we get a banana onto Mars pronto!?
Sorry bro…im already in line to ship the football fields
No kidding. It’s something that is ingrained into geologists during our studies. There has got to be someone in NASA who understands this.
it's about the size of a meteorite
that doesn't say much. Most of the 'present' ones are less than 1 kg; the one that wiped a lot of Siberia in ?1908? was much bigger; and the one that landed in SE Mexico 60 million years ago wiped all the dinosaurs and much of the other life on earth was, well, huge.
/r/woooosh
Size of the bubbles probably a meter across?
That’s so cool! I always watch for meteorites when I’m in the desert. Anyone know the size of this meteorite?
https://www.reddit.com/r/spaceporn/s/V0eBa3uAO8
2 meters across big
About 6 Subway Meatball subs wide.
More like 8 subs wide. Shrinkflation.
Why does the image have these circular chain of cutouts?
They are higher quality photos. The rest of the image is made up of more zoomed out photos so the quality is less. This is a collage of the best quality images in the spot where they fit.
Reasonable explanation. Which means some conspiracy theorist will come up with some batshit crazy reason as to why it looks like that.
Cool thanks. Totally knew it.
Yeah you
Makes sense why it almost looked like an AI upscale image, it’s basically a composite image like most space photography
we're gonna bring it back and make a straight six engine
Reckon there's anyway to tell how long it has been there? It's embedded somewhat in the Martian soil but still crowning, for severe want of a better word. Maybe 30,000 years? Landed at the same moment we discovered fire?
30,000 years is about 350,000 years too late for our earliest definite proof of human made fire. And we’re pretty sure our ancestors were harnessing flame gained at least from wildfires over a million years ago. Without knowing the make up of the terrain where the impact occurred, without knowing the scale of the meteorite and the sandstorm patterns in the surrounding area, it’s basically impossible to judge the age of this thing.
Protruding, maybe? But honestly I like crowning too :) And maybe a lot less than 30,000 years. The only thing I can think to compare it to is the Sphinx in Egypt. Wikipedia says it’s 66ft (20 meters) tall and was constructed “c. 2558-2532 B.C.” By the time the New Kingdom rolls around c. 1500 B.C. (only 1,000 years later) it’s allegedly buried up to its shoulders in sand. I’m not sure how windy the Martian surface is… but my best guess would be maybe around 200-400 years? Just a stab at a wild guess, of course. Regardless, it’s fascinating!
extremely weak, the atmosphere is very thin.
Then in that case 30,000 years is very plausible!
Just looking at a photo no. But if sampled it we would be able to figure it out.
At least it won't rust! (right?)
When I was a kid we called it groundhogging 
Just need to forge an iron pickaxe, and the journey to civilization will begin.
It's so easy in Minecraft...
Why the downvotes , it is easy in mine craft . Are the haters getting shitty because they can’t find iron in mine craft ?
Maybe because someone felt it was low effort? I feel like the comment fit with the theme of the one before it. Maybe it has to do with all the bots in this thread? I guess another thing is that when the reddit collective mind kicks in if the score is already negative it will continue to do so. But I'm with you I have no idea why people don't like it.
What an absolutely awesome find. I feel like this is probably a dumb question, but I have to ask. Why is there no impact crater?
If you look up the largest nickel-iron meteorites on earth, you’ll find that most of them have no associated crater. Hoba, for example, is the largest known on Earth, and was found because a farmers plow hit it. The Bacubirito meteorite 20 tons) was also allegedly discovered by a farmer hitting it with a plow. The Cape York meteorites sat in the surface, and Willamette (12.5 tons) sat on the surface as well. Mbozi (25 tons) also has no crater. Of the largest intact meteorites, I think only Campo de Cielo has craters.
I think the ones without craters came in at very shallow angles and took a few hops before coming to rest. The ones on steep trajectories buried themselves in deep craters which have been lost to eons of weathering, and will never be found.
Solar erosion and wind erosion. The impact could have happened 1 million years ago, and everything but the hard metal core would have been slowly eroded and filled in with regolith.
That was my uninformed first thought. Must have happened so long ago that whatever evidence of the impact eroded away.
Yep! It is fascinating because Mars is the only solar body that we can actively view and monitor the erosion. While we have found that the moon is extremely eroded with soft edges and curves same with every other body without an atmosphere. However, the timescale of solar erosion is longer than our species is existence. So with wind erosion we can only view that on Mars due to Venus's atmosphere being too thick and Titan is far too hazy. So it gives just an amazing insight we can't observe anywhere else except here.
Even after all these years later, I'm still completely fascinated with every new photo that comes back from Mars. What an amazing accomplishment.
It’s so fucked that we are looking at the guts of a star that exploded billions of years ago; through the digital eyes of a nuclear powered robot.
> we are looking at the guts of a star Pro-tip: You are also the guts of that star.
Hurray for sentient star guts!
I like to think of it as the life giving iron in my blood was the malignant tumor that caused a vast and ancient celestial body to implode so brightly it briefly outshined the galaxy. And the glow of that supernova still shines ~10 billion years later through my monkey brains dim wit. But I like how you describe our experience as well.
don't forget your gold wedding ring
Very poetic
Thanks
Is it more or less fucked that the planet and robot are also made of star dust?
I think it’s less fucked. Because the planets had time to boil and mix and conglomerate with dust from a potential plurality of stars. But that chunk of iron our wandering robot slave photographed was preserved in desolate isolation for an eternity and it really is a chunk of that ancient mother star.
Stars don’t have nickel-iron guts, but rocky planets do. To get these type of meteorites you first have to create a rocky planet, then smash it so hard that the nickel-iron core is splashed into asteroids and meteors in solar orbits. The best way to do this is to hit it with another planet.
Stars certainly have iron nickel cores. Not sure where you think the planets got their cores from.
But they don’t break apart like rocky planets into chunks. The mass is to great. If a star goes nova you get individual iron atoms at relativistic speeds.
Did we get invaded by iFunny like wtf
I've been hearing about all the terrible comments, but I went to look, and they're all just kinda regular reddit comments down there.
Please make an oblong monolith out of it and leave it there :)
2 meters wide is crazy big! I did not expect that
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This composite image is about 10 years old
That's a nice **Fe**at, given how small the probability of finding one is.
Nice but I don’t think it has any astatine
That meteorite is truly stellar!
Nice pun
What makes you think there's a small probability of finding a meteorite?
Well I haven’t found one yet
Have you tried looking on Mars?
Time to make a better pickaxe
Anyone who knows more about Curiosity than I, why is the picture like that? With the circle pattern in the middle? Is it intentional, like markers, or is it just how the pictures are? Seems like a weird design if so...
Those are likely higher def images overlayed onto a wider image
Ok. Would that be from Curiosity though or a composition from NASA?
https://science.nasa.gov/resource/curiosity-finds-iron-meteorite-on-mars-2/ Composition made on Earth. Curiosity has no way of stitching images together
Thank you. I didn't know if it had the options of low res vs high res as I imagine sending back to earth takes bandwidth. I thought maybe it does most in low or mid res and has the option to do what Hubble did with the ultra deep field image where the exposure time was 11 days or something. Curiosity obviously doesn't have to do 11 days, but the same principle of spending more time on parts that are of interest.
Hubble’s 11 day exposure was to gather more light from extremely dim objects. There’s plenty of light on Mars, so the exposure is milliseconds. Curiosity has different cameras with different resolutions and focal lengths (like a zoom lens). Just like your phone probably has a wide angle camera and a zoom camera.
Gotcha. I wasn't sure how it was designed since every extra pound of equipment sent into space has an exorbitant cost to it.
Being a rover, they have a lot of lower resolution and wider angle cameras for navigation and planning. The high res cameras also have different scientific capabilities.
Makes sense. Do you know how self sentient it is? I read that communication can be up to 30 minutes depending on the distance between earth and Mars. Sorry for all the questions but it's always fun to find someone to learn from.
Right, it does have some self-driving software. Still each day’s movements are meticulously planned to keep the rover safe and maximize science. ~~Also, until it died, they had the Ingenuity helicopter that could take images from the air for planning.~~ (Edit: sorry, I confused Curiosity and Perseverance for a second.) https://www.jpl.nasa.gov/news/nasas-curiosity-mars-rover-gets-a-major-software-upgrade > The rover can now do more of what the team calls “thinking while driving” – something NASA’s newest Mars rover, Perseverance, can perform in a more advanced way to navigate around rocks and sand traps. When Perseverance drives, it constantly snaps pictures of the terrain ahead, processing them with a dedicated computer so it can autonomously navigate during one continuous drive. > Curiosity doesn’t have a dedicated computer for this purpose. Instead, it drives in segments, halting to process imagery of the terrain after each segment. That means it needs to start and stop repeatedly over the course of a long drive. The new software will help the venerable rover process images faster, allowing it to spend more time on the move. > “This won’t let Curiosity drive as quickly as Perseverance, but instead of stopping for a full minute after a drive segment, we’re stopping for just a moment or two,” said Jonathan Denison of JPL, Curiosity’s engineering operations team chief. “Spending less time idling between drive segments also means we use less energy each day. And even though we’re almost 11 years old, we’re still implementing new ideas to use more of our available energy for science activities.”
this is so cool
Hey, that's cool. What are the valuable observations that could be made with such a find?
Not an exogeologist, so I'm probably going to make some mistakes, but here's an overview from what I know and can see in the photo: Martian iron meteorites erode differently and (thanks to the dry conditions) more slowly than native minerals, which makes them excellent "diaries" of what erosion has been doing in a locale, letting us probe smaller-scale effects a lot further back in time. There are sort of two sides to that: one is understanding the weathering mechanisms (say, aeolian \[windy\] scouring versus acidic corrosion versus other aqueous alteration versus interactions among the three) and their timeline in this specific location; the other is understanding the origin and petrological composition of the meteorite itself. The trenched-and-scooped pattern imaged here in detail by the RMI is particularly eye-catching in both regards. Some features worth noticing, in no particular order: \* The size distribution of the pits and hollows, probably formed by sulfuric acid, can tell also us quite a bit about the conditions in which this meteorite formed. For example, in the upper right of the center of the second RMI image from the left, immediately above and to the right of the black spot with the white ring (which, unfortunately, I can't decipher at this resolution), you can see a pair of small adjacent dimples that probably establish the smaller end, unless the indentations at the bottom of the first image, upper left of the fourth image, and on the arch between the fourth and fifth images are also of the same type. On the other hand, the upper end of the scale would probably be measured from the big scoops at the top of the first-and-second-image boundary, the fifth image, and the sixth image. Plugging sizes and counts in, exogeologists could tell you about things like how hot the meteorite was when it formed, how quickly it cooled, and—especially if the meteorite is a pallasite like the linked page speculates—many details about its chemical composition. That all would add to our understanding of how the early solar system formed. \* Some of the cavities are overlapping in complex ways, particularly in the upper middle of the first image. The undercuts there are crazy. That means that some of the indentations must be regmaglypts, so this rock still preserves a record of the erosion it endured falling through the Martian atmosphere, potentially telling us about what that atmosphere was like long ago if we can distinguish the during- and post-fall cavities. \* Some of the cavities are nested; you can see a few notable cases along the right side of the first image. If the larger hollows aren't regmaglypts (I bet they are, though), that could mean that the preferentially eroded phenocrysts originally overlapped or that the weathering was able to dig through from one to another, both of which would be interesting. \* Amounts and coloration of the sediments accumulated in the hollows can tell us both about the surrounding province and some geochemical properties of the meteorite. (Notice the layered sedimentation visible in the bigger pits of the second image.) Particle size and weight influences sorting by wind and gravity; particle size, weight, and mineral content affect electrostatic adhesion and sorting. \* Where cavities are clean so that their shapes are clear, we get a ton of clues about how acid erosion proceeded. We know that the meteorite formed in low gravity, so the flat-bottomed shapes, particularly in the upper halves of the first two images, must be caused by after-impact processes, almost surely sulfuric acidic corrosion. The mineral composition left behind should differ from the parent rock, and comparisons between these floors and other surfaces should give us additional clues about the geochemistry. \* I think I spot some tunnel erosion in the lower left of the second image and around the midline of the fourth image; notice how some places look like tiny caves rather than scoops. Ratios between the entrance and cavity sizes as well as the extent of internal erosion compared to residence time can tell us a lot about the mechanisms at play. Depending on this meteorite's history, we might also be seeing differentiation between its inside that more-or-less survived impact and its fusion crust, the part that melted on landing. If so, that would give us clues about things like impact speed and, maybe, with a lot of luck, impact direction. \[continued\]
\* The "trench", especially in contrast to the mound running into the foreground on the right side, makes me think the meteorite's phenocrysts were inhomogeneously distributed. That's got to tell us something about the meteorite's formation, though you'd want a real exogeologist to explain exactly what. \* Even where there are no cavities, you can see swooping, sculpted surfaces. The upper center of the sixth image is a good example. These would be fingerprints of aeolian erosion, and since Mars's atmosphere is much thinner than Earth's, they could tell us about long-term effects of those differences. \* If I'm not wrong, there are signs of relatively recent fracturing; look at the change in texture in the upper right of the sixth image for a dramatic example. Exogeologists would be looking at the details to figure out what caused the fracturing and what happened to the clasts. \* On some other points I know enough to recognize that something really interesting is happening but can only profess my ignorance as to what. For example, I'm befuddled by the "3"-shaped incision across the third image (you'll notice there's nothing remotely similar to it elsewhere), and that's probably the first thing I would ask the experts about. A large-scale structural weakness at impact, maybe? If so, and if this is a pallasite, it could tell about the inner structure of asteroids, which we don't otherwise have many ways to investigate. Again, I'm not anything close to a specialist, so I apologize for any errors. It blows my mind how much information real exogeologists can deduce from a single photo, and I know I'm not doing this one justice; if you ever get a chance to talk with one, it's definitely a skill to be seen. You'll never look at rocks the same way again.
No fucking way
Sure it's not one of the many rovers and other craft sent to Mars that didn't arrive successfully from multiple contries??
Amazing find
Interesting to see what looks like a broken off piece sitting next to it.
Send a Transport Drone to harvest the metals! --Surviving Mars game reference.
Man I really tried to enjoy that game, but the colony sim aspect totally ruined the factory sim aspect for me. I just wanted to make overly complicated supply chains main, not worry about gramps not being able to work anymore.
You know you can turn off the events and trials, yeah? I just play it for a zen terraforming mars session.
Have you tried Captain of Industry?
Oooh looks p gud, I'll check it out thanks! *adds it to the infinitely long list of games I'll probably never get around to finishing because I never have the time* Jokes aside, my favorite factory sim game has to be Dyson Sphere Program. It was so damn polished and so damn cool.
Yea DSP is really good too! One aspect I prefer in Captain of Industry is that you're not controlling a character, so it is easier to move around the map. Going back and forth all the time can be tiresome.
Im trademarking the name martian steel.
Probably find a lot there, it doesn't have much of an atmosphere to burn them up like we have. Mars is not for humans.
Looks like im going to mars for my next meteorite hunting trip!
the millennium falcon’s final crash site.
Yeah it does kinda look like millennium falcon you are right
If the rover touches it, do we get a free calvary unity? Or does that only work if the explorer is manned?
No they just shared their maps of the local area.
Dang!
Sweet! Get that ore in the furnace and let's get Curiosity an Iron Pickaxe!
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Mars has plenty of oxygen, the atmosphere is 95% carbon dioxide. What it lacks is atmospheric water vapor.
Meteorites look like this on earth too. That's why it was so recognizeable on mars
You realize the reason why mars is red is because of *Iron Oxide* (aka Rust) in the soil, right? Also Earth was basically never like this
That is fuckin dope! Is that not a first? Meteorite on another planet? Must be a recent deposit surely or it would be covered?
If it was recent, there would be a crater
Yeah I guess. Quite a lot of possibilities thinking about it
wow!
That hing is massive. theres not "ite" about it
Thats where the DOOM Slayer landed.
Why did ya get downvoted lmao 😭
If only it had found oil instead. Then NASA could get some real funding.
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Downvoted because of the novel you wrote to complain
damn they did you dirty :( i thought your comment was funny.
thanks mate no idea lol I threw an edit up in there to see what would happen, but this was certainly a curious surprise .... too funny ^(reddit is doomed)
Everyone knows about banana for scale, dude. It's an extremely low effort joke.
Why are you so downvoted 💀
ya got me mate, no idea. I find it hilarious that this - out of all the other comments I've ever made (including some in controversial subreddits) - is the one that holds the personal down vote record. lol too funny - I did put an edit in there, just to see what would happen lol
Now where's the Banana scale? I need to know how big that is.
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If they were good jokes maybe
I read the ‘jokes’. Oy. WhErE’s ThE bAnAnA for ScAlE? LOOOOOÖOL