ฝัง
- เผยแพร่เมื่อ 28 ก.ย. 2024
- Episode 181
Sometimes Mars offers up unexpected treasures that defy easy explanation, like a bright speckled rock that Perseverance discovered nearly four months ago. Now it’s a rock with zebra stripes that begs the question: how did this form?
Thanks
Thanks for your show of support for this channel!
I never thought I'd get to explore the surface of Mars when I was aged 70. This is just fantastic stuff. Thanks Mars guy.
Good news, you're only 37.3 years old when exploring from Mars!
Cool to hear! Glad you still care and i hope i and my kids will too!
Not quite 70 yet, but never thought I would be exploring Mars on a tiny handheld device that does way more than a Star Trek communicator...
Let's make it till we see people walking around on it. That would be wonderful.
I know, it's wonderful.
Maybe Perseverance will be lucky and find another one. It is odd the One Zebra Stone is just sitting alone on the surface. Where is its Mother OutCropping? ☆☆
Up slope.
Fascinating! I'm 61 and want so badly that a human walk on Mars in my lifetime. Fingers crossed.
63, and feel exactly the same. It's the one thing I desperately want to see before I go.
62 n fingers crossed 🤞GB :)
I'll be 68 in November. I want to be around, too! I also want to see what they find in the oceans of Europa. Just give me my smartphone in the nursing home, and I'll be happy. 😊
Until robots can construct a safe habitat, we fragile bags of meat are ill suited for the solar radiation and lack of atmosphere on Mars. I think Mars visits by humans will not happen until AI robots can build landing pads and pressurized living and working quarters before we launch.
I was born during the IGY in '58... same year the U.S. launched its first successful satellite, Explorer.
I still live about 90 miles away from "The Cape" and from this vantage point, I have watched them flying humans from the Mercury program up to the Dragons now.
I grew up reading Golden Age science fiction... so seeing it FINALLY beginning to become reality... is a "bucket list" goal for me also.
Carry on!
Mars Guy never fails to impress on Sunday mornings. Gneiss work!
Ha, good one!
Some day a geologist from earth might be able to find that rock again and be able to answer all the questions. Thank you for sharing. Have a great day and stay safe.🙂🙂
aka... fake news?
@@EEEZYWEEEZY Your comment makes absolutely *_no_* sense given the context and original comment... 🙄
Could be another keyboard pounder.@@DUKE_of_RAMBLE
@@stevenr8606 That was my suspicion, but, I still felt their stupidity deserved being called out... 😏
I figure if you don't, they'll think it's acceptable behavior and continue to do it. _(yes, I treat them like children because, let's face it, that's the level of maturity they exhibit 😁)_
As somebody who loves to pick up cool rocks, the fact that this particular rock's exact location is known but we can never got back and look at it again makes me *so mad*.
nice
Ahh, puns. Gentle humor always welcome early on Sunday mornings.
Glad you appreciate this.
Mars Guy find's 🦓 on Mars 😉
The stripes are the result of evolutionary pressure, as an adaptation to predation, to help them to blend into their surroundings and confound their predators. This implies that Mars was once savannah. Unfortunately this species was hunted to extinction, probably by early hunter-gatherers, as we can surmise by the rarity of the find.
PUNS? Not what I needed early on Sunday morning! LOL
Oh man, we're on Mars rock hunting 😄
1:30 That hammer is no everyday item for a layman viewer. You could additionaly display a banana for size comparison.
The handle is sized to accommodate a human hand. That is, an adult human. Hope that helps. 😊
I will never grow old of mineral puns.
Hey MG 👋 interesting as always. Zooming along now, soon be at the top JPM🚀⛏️🇬🇧😎
Thanks, and yes, making tracks!
Could it be of meteoritic origin? It's pretty odd to be so strikingly different from anything else we've seen there.. If anything's worth of turning the rover back for a closer look, it's oddities like this!
Good idea but I'm thinking a meteorite might show some ablation which this does not-what a puzzle
I am curious about how much more rounded the edges on the rock are than others visible in the photos. Some sort of weather might have occurred. Could sandstorms have smoothed the surface? Does that point to it being softer than other exposed rocks surrounding it? Or just older? It does seem like it is some sort of crystal structure as the dust does not seem to stick to it very well.
I don't know anything, just looking at that rock, I note that it's worn round and out of place, so it makes me think old. I'm also thinking it's sedimentary in origin and that water may be how it got to where it is and the shape it is.
Looks like a Skyrim silver ore vein 😆😅
This may be a bit of a stretch, but...since we've already found plenty of meteorites here on Earth that originated from Mars (blown of the surface of Mars by massive impacts), is there a possibility that at least a few out-of-place-looking rocks on Mars are actually meteorites from Earth?
No evidence of a fusion crust, so less likely to be a meteorite.
@@MarsGuy Admittedly I don't know what a fusion crust is (is it the dark matte charring on meteorites cause by atmospheric entry heating?), but I wasn't just talking about this specific rock, but maybe others scattered around that rovers haven't even checked out yet. More of a "Wouldn't it be cool of we did find one?" thought.
This is a zebra marble like one from Mexico - rounded by fluviatile transport. I have a weathered one just like this in a box somewhere. Different from gneiss or porphyritic pebble the white part is seemingly more susceptible to erosion / weathering while the dark part is more resistant. The later might be due to the mineralization from high pressure fluids making them somewhat harder than the source rock.
I have a rock very similar to that.
I’ll take your word for granite.
I cannot decide whether to add or subtract ten points to/from your score for the bad pun. But thanks for the information!
Keeping score?!
And so isolated.
How was it formed, how did it move?
In Norwegian, gneis 😊 and a lot of it here
Gneiss video!! :)
; )
Truely Interesting ... Bringing to light The Geological. Formations on The Martian Surface
Of Mars ... as well The unique rocks to be found .
For the new generation Geologists .. a future in
The interpretation of Geological Structures
On Mars ... Perhaps they will discover GOLD
HA !
So it's not a Gniess Rock Star?
🤷🙂
that was a gneiss shaggy dog story. What if this zebra rock was laid there eons ago by some ET hiker who was just stacking rocks. lol
CONTAMINATION?
😎👍
Your pronunciation of gneiss is spot-on, except that the “g” isn’t silent in German ;).
Yeah, just using the pronunciation of most English-speaking geologists.
If it's not nice, it must be mean.
And if it's not gneiss, it must be average.
Why doesn’t nasa hire you to make videos? This could easily go on their channel
Thanks for that.
there are no unicorns
Remember gneiss bands don’t make punk rock.
It's not heavy metal.
'yo un aint cool'
Well that video was not nice. :p
It's not gneiss because there are no Germans on mars.
Maybe Adolf brought it there when took of from Berlin in his V2 rocket ?! 😂
@@astrogeo1 His pet rock is all that remains.
How can you believe anything from the people who forgot how they went to the moon?
🤨 I don't think anyone forgot.
How're you holding up after the restraining order, dave?
@@FLAM1nWaffl3x Go watch Elon's Spacewalk (spacepeak) and see how the suits blew up like ballons then tell me they had better tech in the 60....
As a non-geologist it's always impressive to see how many different rocks and minerals nature cooks up in her kitchen of chemistry, temperature and pressure. Geologists seems like detectives to me.
As an artist I am fascinated by the variety of patterns and textures they have.
Absolutely they're detectives. First they deciphered the prehistory of the Earth and the formation of the Solar System, and now they're getting to grips with Mars. It's an incredible time to be alive.
I love this channel, no clickbait and just science.
I mean, there's neither a zebra nor a unicorn in this video. /s
dumd boring science
😁 The old saying in medicine "sometimes it's a zebra," to point out the odd diagnosis. One can hear the sound of hooves but it's not always a horse... 😊
"When you hear hoofbeats, think horses, not zebras"
These little "gems" of unexplained findings on the surface of Mars are part of the reason for exploration. They keep our attention and curiosity moving forward. Oh for the day when humans can reach out, pick it up, analyse and find the answers they seek. Until then, thanks Mars Guy.
Agreed. And thanks.
Awesome. Thanks for another great update.
Thanks again!
I saw that zebra rock and got excited. "Looks like my gneiss sample!" and all that implied. Then, hopes dashed--no primordial tectonics. Thank you "Mars Guy" for another stimulating Sunday morning.
Given the lack of compositional information, you could still be right...
Consistently one of the best channels on TH-cam.
Thanks for saying so!
I wake up every Sun morning looking forward to my Mars Guy update. Thanks for another good one.
Glad you do! Thanks again.
Your updates are so much appreciated,
Glad you do.
Looks like a layered Gabbro consisting of pyroxene,hornblende and feldspar
What is hard for me to understand, why they do not go back sometimes to investigate. It is pretty clear they do not know exactly what this rock is, how it formed, etc... and the rover is there to investigate info of exactly such unknown things... but they just drive away...
Yep -- if the danger is low, I would turn that Rover around!
As the primary directive is to look for signs of evidence of life, unfortunately the geology of how it formed, has to take a back seat. But like the Galapagos Islands, it's not going anywhere. Other explorers or robotic explorers, will eventually return to that area, I am sure.
My guesses:
1) It's unlikely that stone is unique and there's a reasonable chance of finding a similar one if they just proceed.
2) Moving the rover is always a bit dodgy, Percy has very nearly got stuck a couple of times. Perhaps back-tracking through that terrain is simply too high-risk?
@@David-yo5ws 'Someday' that area will be:: "Zebra Rock National Unicorn Park" at the Visitor's Center! ☆☆
They do alter course quite often. On this occasion I guess they weighed up all the options and decided that it would be better not to. If they always took a beeline to the nearest shiny thing the rover would have probably immobilized itself long ago.
Glacial erratic? Wouldn't THAT be something! Animated "Mars Guy" - now that is cool!
Glad you like it!
...nicely.. done 🎉
Don't you mean "gneissly done?" I'll get me coat... 🏃♂
Gneiss one!
That might be the first chortle I've ever made. Thank you...well done🤭
Ha, glad it was successful!
4-star pun ending
Thanks!
That Gneiss comparison to not mean, sure is nice 🙂
Thanks Mars Guy for another Sunday class! 👍💪✌
Thanks for attending!
Love your updates, thank you!
Thanks for watching!
Love the pun on words, but gneiss is pronounced with the g-sound audible, as the K is the name Knut the Great (Cnut in English). Not nut and nice lol
For long time already it's my opinion, that they are unnecessarily rushing too fast, not having a look on dozens of highly interesting objects
Good Morning, Mars Guy. You always ask interesting questions. Like how was the rock formed. You're right it is remarkable. My question would be. How did these rocks end up virtually in the middle of nowhere? The rocks are maybe similar to the rocks on earth. Another question I have. Is there a possibility That there a elements on Mars that are not on the periotic table? Great Episode. You really make people think. Have a Great Sunday, Mars Guy.
This one likely rolled downhill from an outcrop somewhere. And no, it's unlikely that Mars has any novel elements. Minerals, yes.
"not gneiss" Clever.
But how did it get there ?
ignimbrite? Some rocks in the English lake district have this sort of structure...
In local parlance you’re just asking for it… “Looks pretty mean to me bro!” Mean: good, awesome, impressive. It’s a kiwi thing… ; )
Mars would be every geologist's heaven. 😅
Must of been moved there by a glacier millions of years ago😮
Ireland has/had some brilliant white quartz glacial erratic stones that were revered in the past - they were centerpieces to stone circles 3000+ years ago. Some were quite big (on record, now sadly destroyed). These stones / boulders were so bright and unusual in the local area they became focal points for gathering, apparently. It seems Mars also has some erratic stones it needs to explain.
Yeah. Both are just volcanic rocks, with a lot of chloride minerals in them🤗
I live on the edge of old glacial till and I have seen rocks much like this while tilling my garden. I always assumed they were igneous or metamorphic, also very heavy. I will have a friend examine it (a geologist) and come back and repost if I find anything out.
like glacial erratics, two dozen of the same rocks, and then one oddball.
GO CSGS. That is a name I have not heard since we left Colorado Springs a decade ago.
Surprises like this is why exploration is a good thing...one of the reasons, at least.
This certainly looks like a bimodal volcanic tuff. If so, the dark areas are basaltic, and the white andesitic to rhyolitic. Such tuffs can form where basalt intrudes older rock, melts a higher silica fraction out of it, and the two liquids are erupted together. This rock is very well rounded and has been transported much further than the angular basalt chunks which are so common in the area.
Frustrating when they don’t investigate things like that. Isn’t that kind of what it’s therefore? I don’t know if there’s some destination deadline, but traveling is half the fun
Now I can explain the qualifications Santa makes when filling out his list to the kids on my school bus.
The rock looks like modified lava with iron mineral like dark material in it. I have seen Dolomites and granite with similar patterns. Tahoe area granite has a similar appearance.
Well, I guess that rock was gnus worthy
Not gniesse and not average. Nice pun!
Thank you for posting.
🤔 What are those circular markings dead centre on the rock at 2:30? 🤔
reminded me a little of restingolites
I wonder how far it is now from where it first formed.
mean ole rock.
Thanks Mars Guy.
Yep!
My first was gniess, but then you went on... nice!
👍
Good morning from Paris this week MG maybe these stones are like the mile markers we have here on Mother Earth. It’s so beautiful to drive around Mars together.
Glad you're enjoying the ride from there.
So that's where Gneiss Name got his name.
or that’s not a Martian rock
Nice!
Rite Mars Dude, A horse is a horse of course of course, unless it's a Gneiss Zebra! TFS, GB :)
Ha, good one!
Once again, a fascinating enigma. Metamorphic rock, if that is what the Zebra Rock was, suggests a very active geology in Mars' distant past. Once we have boots on Mars' ground, the entire geological history of the planet since its molten state will be an open book given the apparent lack of plate tectonics. A research geologist, such as yourself, Mars Guy, has to be chomping at the bit to be about it.
Boots on the ground will be a huge development, but enigmas will remain, just like on Earth. Can't wait though!
Nice or not nice? Love watching your geologist interpretation of what type of rocks we are viewing. 👍
Gneiss! And thanks.
As Perserverance appears to gain elevation perhaps the zebra rock source outcrop will be encountered. The rock appears subangular to rounded suggesting its been extensively sandblasted by wind and/or rolled down slope some distance by intermittent flowing water. Maybe it rafted in on ice from ancient glacial melt waters. Weird.
Yes, I'm hoping for more.
Meteor ?
Andrew Hall just made another presentation on Mars through the Thunderbolts Project: th-cam.com/video/F5F6s6Oxm5M/w-d-xo.html
This man drills down. Can't recommend him enough.
Truly fascinating. Both the zebra rock, and the investigative thought process of a martian geologist. A very insightful description to what differentiates this rock. Thx Mars Guy.
Thanks again. Glad you enjoy the investigation.
Ending with a World class dad joke. Well done.
Ha, thanks!
This looks alot like the "paint" that other rocks that Mars Guy has featured have, but with a unique erosion pattern where the paint has dissipated. Possibly nothing more than that but shame that it wasn't further explored.
Thank you again for the excellent presentation
Thanks for watching.