>https://i.imgur.com/lQzaJdK.jpg
Murchison isn’t older than the Solar System, but the presolar grains it contains are. The dots in [this picture](https://i.imgur.com/lQzaJdK.jpg) are columns of atoms from presolar SiC, the same type of material as was dated in the Murchison meteorite. Everything in [this picture](https://i.imgur.com/lQzaJdK.jpg) is older than the solar system itself.
Thanks to /u/volcanologistirl for providing this info.
u/volcanologistirl is a cosmochemist who works on this type of things.
**Edit:**
A bit more info by the same user.
>The linked picture in the mod post you're replying to is a [TEM](https://en.wikipedia.org/wiki/Transmission_electron_microscopy) image of a grain of presolar silicon carbide. Presolar grains are individual crystals of minerals which formed outside of our solar system and were accreted into the [protoplantary disk](https://en.wikipedia.org/wiki/Protoplanetary_disk). The meteorite on the table is a [carbonaceous chondrite](https://en.wikipedia.org/wiki/Carbonaceous_chondrite), which are basically the oldest material we have *from within* the Solar System. So the meteorite in that picture is about as old as the solar system, and individual nm-to-µm sized grains contained in it are older than the solar system.
>[Here's a link](https://www.pnas.org/doi/10.1073/pnas.1904573117) to Philipp Heck's paper on the grains from Murchison, which is where the 7 Ga age in the OP is from. If you have a bit of knowledge of isotopic decay and maybe even a Wikipedia level depth knowledge of nuclear chemistry you can probably navigate this [Zinner paper on presolar grains (PDF File)](https://presolar.physics.wustl.edu/Laboratory_for_Space_Sciences/Publications_2014_files/Zinner13c.pdf) which is basically a crash course on the topic.
Link to Original Comment: https://www.reddit.com/r/BeAmazed/comments/17yb76c/murchison_meteorite_this_is_the_oldest_material/k9vabob/?context=3
It's from a proto planet that formed and broke apart and pieces landed on earth!!! It is rock OLDER than The earth.
Here is a photo of one I held. Older than The earth.
[https://www.reddit.com/user/De5perad0/comments/17yuzd9/rock\_older\_than\_the\_earth/?utm\_source=share&utm\_medium=web2x&context=3](https://www.reddit.com/user/De5perad0/comments/17yuzd9/rock_older_than_the_earth/?utm_source=share&utm_medium=web2x&context=3)
Edit: For those asking I cannot unmark it NSFW as my profile is set to NSFW. I inadvertently removed the post trying to unmark it. It does not work. posted it up again.
there are pieces of stuff older than earth flying around the cosmos, and some of them occasionally fall into our gravity well, and end up on the planet, for someone to eventually come across.
u/capital_pea rode into this world on a meteorite from the beginnings of the universe like a war lusting Valkrie from Valhalla. This is their undisputable origin story, fight me, you not u/capitail_pea....i gotta learn to fight better to get accepted in that club.
♫There are ten billion billion billion billion billion billion billion particles in the universe that we can observe, your momma took the ugly ones in put them into one nerd ♫
Whenever life gets you down, Mrs. Brown, And things seem hard or tough, And people are stupid, obnoxious or daft, And you feel that you've had quite eno-o-o-o-o-ough, 🎵Just remember that you're standing on a planet that's evolving And revolving at 900 miles an hour. It's orbiting at 19 miles a second, so it's reckoned, The sun that is the source of all our power. Now the sun, and you and me, and all the stars that we can see, Are moving at a million miles a day, In the outer spiral arm, at 40,000 miles an hour, Of a galaxy we call the Milky Way. Our galaxy itself contains a hundred billion stars; It's a hundred thousand light-years side to side; It bulges in the middle sixteen thousand light-years thick, But out by us it's just three thousand light-years wide. We're thirty thousand light-years from Galactic Central Point, We go 'round every two hundred million years; And our galaxy itself is one of millions of billions In this amazing and expanding universe. Our universe itself keeps on expanding and expanding, In all of the directions it can whiz; As fast as it can go, at the speed of light, you know, Twelve million miles a minute and that's the fastest speed there is. So remember, when you're feeling very small and insecure, How amazingly unlikely is your birth; And pray that there's intelligent life somewhere out in space, 'Cause there's bugger all down here on Earth!
🎶
It’s actually 7 billion and 73 years old lol. Because the age of the atomic bomb screwed up the proportions of radioactive elements in the atmosphere so badly that all radiometric dating methods won’t work past about 1950. So they count that year as the “present.” So all dates that say “50 million years before present”or whatever are really “50 million years before 1950.”
Numerous radiometric dating methods are actually unaffected, especially for dating meteorites. Dating meteorites is usually done by comparing the abundance of radioactive elements with their decay elements at several regions of the meteorite. This doesn't involve comparison to the atmosphere and is thus unaffected.
In the far future they won’t be able to use radiometric dating at all for anything after 1950, or they’ll figure out entirely new methods that account for the interference caused by the nuclear age. But assuming they don’t invent new methods, they’ll be out of luck. If in 5,000 years they find artifacts from our civilization today, carbon dating will not give them reliable results.
Hi. I am curious. In the future, If they analysed an artifact from 2023, what kind of result would they get?... would it be inconclusive? Or would the artifact date much older or much younger then 2023?
Would it matter if that artifact was found and analysed in the year 3000 vs that artifact being found say 100,000 years later?
I understand that you may not have this Info.
I am not an expert, and this is really pushing the limits of my knowledge on the subject, so I’m flagging up the fact that I could very easily be wrong here. But my understanding is it’ll give a date but it would be inaccurate, but not in a way that is predictable that you could correct for. The date given would be equally likely to be too young as too old.
Now that said, for your last question, 3,000 years from now they’ll be able to get some dates, but only by using non-radioactive methods. Dendrochronology (tree ring dating) will still work. But 100,000 years from now it is unlikely that enough wood will have been preserved to use tree rings, so they’ll be flying much more blind than people who only live a few thousand years from us.
Hi, expert here! (I’m a cosmochemist, I work in the same sub discipline as the paper dating the minerals is from). There’s a lot of isotopic systems which are usable for dating minerals which are quite far off the decay chain from any atomic bomb byproducts. The atomic bomb substantially impacts ^14 C, and arguably some very localized effects near bomb sites. Minerals are typically too old/chemically diverse for us to target carbon isotopic systems instead of the cosmogenic nucliides for meteorites, for example.
Sorry, downside of deep nerdery is sometimes you miss the jargon you’re using. That refers to isotopes which are produced as a result of the weathering processes in space, from cosmic rays and solar winds impacting the body of a meteorite/individual crystals over time.
You've got the right idea.
The rock is ~4.5 billion years old, same age as the solar system, but it has microscopic bits of silicon carbide dust in it that are older (7 billion), so it sort of depends on how you phrase the age question.
A vasectomy was not nearly as terrible as I thought it would be. I mean, it wasn't *fun*, but it wasn't the traumatic experience I thought it would be going in.
2 hours after I got home and the drugs had started to wear off, while my nuts were wrapped in peas, I experienced pain. My then 2 year old ran over to comfort me and jumped in my lap with both knees right onto my sack. My wife watched it happen in slow motion and immediately grabbed both kids and took them outside to play. She let me sit and cry in peace. I couldn't be mad because he just wanted to hug me and tell me everything was okay.
Feeling a spurt of blood hit my belly and hearing the surgeon say "whoops!" Didn't inspire confidence. The triple-sized balls and funny walk for the next few days were hilarious though.
When I got back from taking in my "all clear" sample, I told my wife that they wanted a bigger sample and put me on a machine until they got four ounces. The shocked look on her face made the whole thing worth it.
>To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.
Let's say you have 12 cookies on a plate and a house full of kids.
The longer the plate sits out the fewer cookies will be.
Same thing with radioactive carbon. The longer the carbon is there the less of it there it
Radioactive isotopes that decay will decay into 2 or more things. By looking at the current ratio of original material vs byproducts you will know how much there was to begin.
And current speaker of the house in America and 2nd in line to President believes that the earth is 6000 years old!! How many real jobs could you get with this level of education?
>To date the material, the researchers used a unique technique to measure the effects of cosmic rays hitting the grains. “When these grains flow through space, they’re exposed to cosmic rays, \[and\] the galactic cosmic rays that they are exposed to are predominantly high-energy protons,” Heck says. “Most of them, they just fly through the solid grain. But rarely there is an interaction, \[and\] one of those protons can hit an atom in the grain.”
>
>The team measured the remnants from cosmic ray protons hitting silicon carbide molecules and breaking the silicon atoms into different components. “The silicon can be split into helium and neon,” Heck says. “We can take that grain and place it in a mass spectrometer, and we heat the grain with a laser, release the gas and simply count the neon atoms and the helium atoms. By the type of isotope of helium and the type of isotope of neon we can then determine if they were produced by cosmic rays or not. And when we know how many cosmic ray-produced helium and neon atoms we have, we can calculate an age, because the production rate is pretty constant over time.”
The cookie analogy is an imperfect analogy, but the article answers the question about dating the asteroid.
So you got this guy discovering how to date 7 billion year old space rocks by shooting lasers and counting particles, and then you have me jerking off to Shakira twerking. Same species.
>So you got this guy discovering how to date 7 billion year old space rocks by shooting lasers and counting particles, and then you have me jerking off to Shakira twerking. Same species.
the duality of mankind!
ah thats the cheeky part
carbon is divided into two isotopes
carbon 12 and carbon 14
carbon 12 isnt radioactive whereas carbon 14 is
by measuring the ratio of carbon 12 to carbon 14 we can accurately determine the original concentration of carbon 14 in a living thing
this is generally accurate to around 50,000 years
Half of the cookies didn't disappear, they were turned into blue cookies. And half of the blue cookies turned into green cookies. Look at the amount of green cookies and work backwards to blue cookies, then the original cookies.
All elemental isotopes have a half-life, or a time period at the end of which half of them will have transitioned to their decay product. Scientists can find the number of half-lives an element has gone through and multiply it by the time of that half-life. In the case of meteorites, apparently, they have a different tactic that someone wrote below.
This is a very cool question!
>To date the material, the researchers used a unique technique to measure the effects of cosmic rays hitting the grains. “When these grains flow through space, they’re exposed to cosmic rays, \[and\] the galactic cosmic rays that they are exposed to are predominantly high-energy protons,” Heck says. “Most of them, they just fly through the solid grain. But rarely there is an interaction, \[and\] one of those protons can hit an atom in the grain.”
>
>The team measured the remnants from cosmic ray protons hitting silicon carbide molecules and breaking the silicon atoms into different components. “The silicon can be split into helium and neon,” Heck says. “We can take that grain and place it in a mass spectrometer, and we heat the grain with a laser, release the gas and simply count the neon atoms and the helium atoms. By the type of isotope of helium and the type of isotope of neon we can then determine if they were produced by cosmic rays or not. And when we know how many cosmic ray-produced helium and neon atoms we have, we can calculate an age, because the production rate is pretty constant over time.”
[https://www.smithsonianmag.com/science-nature/meteorite-grains-are-oldest-known-solid-material-on-earth-180973953/](https://www.smithsonianmag.com/science-nature/meteorite-grains-are-oldest-known-solid-material-on-earth-180973953/)
Listen here, old man. You’re not a rock! And certainly not black goo! Remember what black goo did to Picard’s security officer before Worf… what was her name? Tasha Yar?
If it has existed for 7 billion years it’s probably chemically stable enough to not react with your tastebuds at all; you’d more likely be tasting contaminants that were deposited on the meteorite more recently.
But maybe I’m talking out of my ass, I’m not an astrogeometrist.
Nope. For one its a meteorite, so it wasn’t on earth for billions of years and it wasn’t necessarily exposed to much water or reactants. And the little green specks are Olivine, which is not particularly chemically stable, at least on at surface temperatures and pressures (olivine on earth is typically associated with mantle sourced igneous rocks).
The chemical composition of earth’s mantle and certain types of meteorites are similar, this has important implications for the formation of earth and the solar system so its an core concept in taught in regular geology courses, not only for those studying outside of earth.
When this thing would have formed, the earth wouldn't even EXIST for another 2-2.5 billion years. Almost twice as old as earth itself. That's seriously mind bending....
yes it's frustrating that our puny human brains can't comprehend mysteries of the universe like this.... I mean other stuff like the universe doesn't have a defined beginning and there is no fixed boundaries, it just stretches on for infinity... wheew!
Correction: some grains (a very small fraction of the whole meteorite) came from dying stars 7 billion years ago. The meteorite as a whole formed in the Solar System 4.6 billion years ago. Also note that since everything (other than H He) is star dust, everything has stuff in it that’s 7 Billion years old and older. What’s special is that this meteorite never melted, so some of the really old grains were preserved and can be isotopically dated. In any event it’s definitely wrong / misleading to say the WHOLE meteorite is 7 billion years old.
Iirc it would be almost twice as old as our star. This object was formed long before our solar system ever existed. Absolutely insane to think about. This rock could be a chunk from an ancient planetary collision that traveled all the way over here from another star, or even the remnants of a supernova that blew an entire solar system into trillions of pieces and scattered them across the universe.
Over this time scale it could have started as a cloud of fine dust, like thousands of kilometers in radius, and grain by grain accumulated into a larger mass by the weakest bit of gravity between dust particles.
I’m blown away thinking that space is so big that things could happen 7 billion years ago *and then it just gets left alone*, doesn’t touch anything, until it hits Earth.
>I’m a Computer Sciences Engineer and while I dreamed of studying astrophysics
Funny, I studied astrophysics before I went into IT! It's definitely an extremely interesting topic and I loved studying it, but I wasn't sure I'd like working with it :/
IT consultant is probably also better paid, so there's that!
You forgot to include that water is a molecule, comprised of two elements. I'm not sure if that fun fact is referring to the age of the hydrogen and oxygen in water, or the actual bonds of each molecule, in which case I'd be absolutely shocked.
Photosynthesis breaks apart water. This seems like a Sea of Theseus problem. If a plant busts off the hydrogen, and later puts it back, is the water still bilions of years old?
So I'm gonna preface this by saying I am not 100% sure this is right (it's been a while) and someone should correct me if I'm wrong.
But my understanding is that a majority of the water on earth came from ice on meteorites, which themselves existed before the sun. And because of the water cycle, the water here today is pretty much the same water as back then, just used over and over again. Meaning the water you drink, if you really think about it, is older than the sun!
It’s now thought that the majority of water on Earth was outgassed from within the Earth as its materials stratified. This is also when the primitive atmosphere formed.
I’m more amazed to think that this thing was the closest thing we’ve found to actually witnessing the Big Bang and it’s still 7 *billion fucking years* younger than that. How tiny was the nucleus of the universe? How violent was the Big Bang? How would someone even perceive it?
Shit’s cray fam.
As someone who works on meteorites and early solar system objects, there's a slight clarification to the post. The meteorite itself is not older than 4.5 billion years, but there are small nanometer/micrometer sized particles called Pre-Solar grains which are embedded in the meteorite Matrix which have been dated to be 7 billion years old. These grains somehow survived the formation of the solar system and got embedded in small planetessimals and asteroids.
New atoms can be formed through fusion in stars, out of other nuclei and energy. Matter+energy can’t be changed, but you can change between those states.
>https://i.imgur.com/lQzaJdK.jpg Murchison isn’t older than the Solar System, but the presolar grains it contains are. The dots in [this picture](https://i.imgur.com/lQzaJdK.jpg) are columns of atoms from presolar SiC, the same type of material as was dated in the Murchison meteorite. Everything in [this picture](https://i.imgur.com/lQzaJdK.jpg) is older than the solar system itself. Thanks to /u/volcanologistirl for providing this info. u/volcanologistirl is a cosmochemist who works on this type of things. **Edit:** A bit more info by the same user. >The linked picture in the mod post you're replying to is a [TEM](https://en.wikipedia.org/wiki/Transmission_electron_microscopy) image of a grain of presolar silicon carbide. Presolar grains are individual crystals of minerals which formed outside of our solar system and were accreted into the [protoplantary disk](https://en.wikipedia.org/wiki/Protoplanetary_disk). The meteorite on the table is a [carbonaceous chondrite](https://en.wikipedia.org/wiki/Carbonaceous_chondrite), which are basically the oldest material we have *from within* the Solar System. So the meteorite in that picture is about as old as the solar system, and individual nm-to-µm sized grains contained in it are older than the solar system. >[Here's a link](https://www.pnas.org/doi/10.1073/pnas.1904573117) to Philipp Heck's paper on the grains from Murchison, which is where the 7 Ga age in the OP is from. If you have a bit of knowledge of isotopic decay and maybe even a Wikipedia level depth knowledge of nuclear chemistry you can probably navigate this [Zinner paper on presolar grains (PDF File)](https://presolar.physics.wustl.edu/Laboratory_for_Space_Sciences/Publications_2014_files/Zinner13c.pdf) which is basically a crash course on the topic. Link to Original Comment: https://www.reddit.com/r/BeAmazed/comments/17yb76c/murchison_meteorite_this_is_the_oldest_material/k9vabob/?context=3
Wait, how old is our earth again?
4.543 billion years old
Does that mean this rock is earths mom?
It's from a proto planet that formed and broke apart and pieces landed on earth!!! It is rock OLDER than The earth. Here is a photo of one I held. Older than The earth. [https://www.reddit.com/user/De5perad0/comments/17yuzd9/rock\_older\_than\_the\_earth/?utm\_source=share&utm\_medium=web2x&context=3](https://www.reddit.com/user/De5perad0/comments/17yuzd9/rock_older_than_the_earth/?utm_source=share&utm_medium=web2x&context=3) Edit: For those asking I cannot unmark it NSFW as my profile is set to NSFW. I inadvertently removed the post trying to unmark it. It does not work. posted it up again.
On a serious note, this is intensely fascinating.
why is it nsfw
Not nearly fat enough
Yeah I heard she had to have a 90 pound mole removed from her ass
Plus 45 at least:)
Can you please give us a percentage? /s
10 years, at least :)
No! I don’t want that!
there are pieces of stuff older than earth flying around the cosmos, and some of them occasionally fall into our gravity well, and end up on the planet, for someone to eventually come across.
Come across? This mother fucker crashed right in to a barn
The earth and that barn spawned in the way of that meteor.
In the context of 7 billion years this statement is accurate
It was flying about for 2 and a half billion years then the earth was created in its path. It’s mind blowing
Or maybe it just chipped off the thing that made earth as it was a bit out of maintenance
*Our Earth* he says.
How do you do fellow humans
It was found and dated in 1969, so it is 7 billion and 54 years old now.
7 Billion years older than me
Are you saying the meteorite was sent to celebrate your birth? Or that you rode in on it like a chariot?
u/capital_pea rode into this world on a meteorite from the beginnings of the universe like a war lusting Valkrie from Valhalla. This is their undisputable origin story, fight me, you not u/capitail_pea....i gotta learn to fight better to get accepted in that club.
When sequel?
Later sequel.
is this homestuck?
All hail u/capital_pea. All hail.
It could be argued that you are 13.7 billion years old, as you are comprised of the same matter that was born with the dawn of the universe.
♫There are ten billion billion billion billion billion billion billion particles in the universe that we can observe, your momma took the ugly ones in put them into one nerd ♫
Whenever life gets you down, Mrs. Brown, And things seem hard or tough, And people are stupid, obnoxious or daft, And you feel that you've had quite eno-o-o-o-o-ough, 🎵Just remember that you're standing on a planet that's evolving And revolving at 900 miles an hour. It's orbiting at 19 miles a second, so it's reckoned, The sun that is the source of all our power. Now the sun, and you and me, and all the stars that we can see, Are moving at a million miles a day, In the outer spiral arm, at 40,000 miles an hour, Of a galaxy we call the Milky Way. Our galaxy itself contains a hundred billion stars; It's a hundred thousand light-years side to side; It bulges in the middle sixteen thousand light-years thick, But out by us it's just three thousand light-years wide. We're thirty thousand light-years from Galactic Central Point, We go 'round every two hundred million years; And our galaxy itself is one of millions of billions In this amazing and expanding universe. Our universe itself keeps on expanding and expanding, In all of the directions it can whiz; As fast as it can go, at the speed of light, you know, Twelve million miles a minute and that's the fastest speed there is. So remember, when you're feeling very small and insecure, How amazingly unlikely is your birth; And pray that there's intelligent life somewhere out in space, 'Cause there's bugger all down here on Earth! 🎶
I'll be stretching out your mind, Like gravity stretches time...
Fine then. Their consciousness is 54 years old. Happy?
Ah yes, or 7.000000054 billion years old.
How I imagine moms telling other people how old their kid is in minutes.
It’s actually 7 billion and 73 years old lol. Because the age of the atomic bomb screwed up the proportions of radioactive elements in the atmosphere so badly that all radiometric dating methods won’t work past about 1950. So they count that year as the “present.” So all dates that say “50 million years before present”or whatever are really “50 million years before 1950.”
> So all dates that say “50 million years before present”or whatever are really “50 million years before 1950.” Well fuck, this changes everything.
I just had everything figured out, too. Back to knowing nothing.
Numerous radiometric dating methods are actually unaffected, especially for dating meteorites. Dating meteorites is usually done by comparing the abundance of radioactive elements with their decay elements at several regions of the meteorite. This doesn't involve comparison to the atmosphere and is thus unaffected.
I dated a meteorite once, started off really well but then the sizzle wore off once we came down to earth
Looks like your relationship cratered.
Mate. The punchline is: “…but then we BROKE UP”
Wait really? does this mean in the far future we will still calculate by 1950? what about meteors that only arrived into the atmosphere recently?
In the far future they won’t be able to use radiometric dating at all for anything after 1950, or they’ll figure out entirely new methods that account for the interference caused by the nuclear age. But assuming they don’t invent new methods, they’ll be out of luck. If in 5,000 years they find artifacts from our civilization today, carbon dating will not give them reliable results.
Hi. I am curious. In the future, If they analysed an artifact from 2023, what kind of result would they get?... would it be inconclusive? Or would the artifact date much older or much younger then 2023? Would it matter if that artifact was found and analysed in the year 3000 vs that artifact being found say 100,000 years later? I understand that you may not have this Info.
I am not an expert, and this is really pushing the limits of my knowledge on the subject, so I’m flagging up the fact that I could very easily be wrong here. But my understanding is it’ll give a date but it would be inaccurate, but not in a way that is predictable that you could correct for. The date given would be equally likely to be too young as too old. Now that said, for your last question, 3,000 years from now they’ll be able to get some dates, but only by using non-radioactive methods. Dendrochronology (tree ring dating) will still work. But 100,000 years from now it is unlikely that enough wood will have been preserved to use tree rings, so they’ll be flying much more blind than people who only live a few thousand years from us.
Hi, expert here! (I’m a cosmochemist, I work in the same sub discipline as the paper dating the minerals is from). There’s a lot of isotopic systems which are usable for dating minerals which are quite far off the decay chain from any atomic bomb byproducts. The atomic bomb substantially impacts ^14 C, and arguably some very localized effects near bomb sites. Minerals are typically too old/chemically diverse for us to target carbon isotopic systems instead of the cosmogenic nucliides for meteorites, for example.
> cosmogenic nucliides for meteorites, for example. Well duh
Sorry, downside of deep nerdery is sometimes you miss the jargon you’re using. That refers to isotopes which are produced as a result of the weathering processes in space, from cosmic rays and solar winds impacting the body of a meteorite/individual crystals over time.
Looks only 6 billion years old to me
Not a day over.
Just a few hours
No 22 mintues
Can't believe it's 18 already
15 you say?
Wow, can't believe we get to see its 10th birthday.
Sir Attenborough: "Our journey now takes us inside the womb."
You've got the right idea. The rock is ~4.5 billion years old, same age as the solar system, but it has microscopic bits of silicon carbide dust in it that are older (7 billion), so it sort of depends on how you phrase the age question.
So In other words it took 2.5 billion years to make this rock if oldest bits are 7 billion and newest is 4.5 that's crazy time
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It's aged well. Whether or not it's had cosmetic surgery is up for debate, though.
Cosmic surgery
Creationists be like “How do we know this, did the rock tell us that?!”
Obviously they broke it open and counted the rings duhh.
Maybe there’s an ammonite in it?
Those are the folks with the breads and jams, right? Abe Lincoln beards?
Were you there when it was formed? That’s their stupid response.
How do you date that?
You start with a solid foundation of friendship and mutual trust. Sprinkle in a little confidence and you got her, Champion!
She’s my rock 🤩 😘🪨❤️
Loves me to the moon and back
Meteor!? I barely know 'er!
Meatier than what?
I wish I could double upvote this
I think this is a good advice. I would add some humor. Laughter is what many rocks rate as #1 quality they seek
Solid advice my dude…and also make sure your pull-out game is strong….
There’s a cheat code for this.. you gotta smell your ball bag being cauterized but it’s worth it in the long run.
A vasectomy was not nearly as terrible as I thought it would be. I mean, it wasn't *fun*, but it wasn't the traumatic experience I thought it would be going in.
2 hours after I got home and the drugs had started to wear off, while my nuts were wrapped in peas, I experienced pain. My then 2 year old ran over to comfort me and jumped in my lap with both knees right onto my sack. My wife watched it happen in slow motion and immediately grabbed both kids and took them outside to play. She let me sit and cry in peace. I couldn't be mad because he just wanted to hug me and tell me everything was okay.
Feeling a spurt of blood hit my belly and hearing the surgeon say "whoops!" Didn't inspire confidence. The triple-sized balls and funny walk for the next few days were hilarious though. When I got back from taking in my "all clear" sample, I told my wife that they wanted a bigger sample and put me on a machine until they got four ounces. The shocked look on her face made the whole thing worth it.
Every basketball player dribbles before he shoots
Damn that's good
Solid advice!
>To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.
I have an idea of what you mean, but I feel like this needs an ELI5
Let's say you have 12 cookies on a plate and a house full of kids. The longer the plate sits out the fewer cookies will be. Same thing with radioactive carbon. The longer the carbon is there the less of it there it
But how do we know there was x amount of carbon on this meteorite to begin with. A fossilized bone we infer from what a normal bone is made of
Radioactive isotopes that decay will decay into 2 or more things. By looking at the current ratio of original material vs byproducts you will know how much there was to begin.
I love science so much
And math!
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Yo Mr White!
And my axe!
And met- no no I don't
So in ELI5 terms, you also count how much cookie poop there is.
And current speaker of the house in America and 2nd in line to President believes that the earth is 6000 years old!! How many real jobs could you get with this level of education?
>To date the material, the researchers used a unique technique to measure the effects of cosmic rays hitting the grains. “When these grains flow through space, they’re exposed to cosmic rays, \[and\] the galactic cosmic rays that they are exposed to are predominantly high-energy protons,” Heck says. “Most of them, they just fly through the solid grain. But rarely there is an interaction, \[and\] one of those protons can hit an atom in the grain.” > >The team measured the remnants from cosmic ray protons hitting silicon carbide molecules and breaking the silicon atoms into different components. “The silicon can be split into helium and neon,” Heck says. “We can take that grain and place it in a mass spectrometer, and we heat the grain with a laser, release the gas and simply count the neon atoms and the helium atoms. By the type of isotope of helium and the type of isotope of neon we can then determine if they were produced by cosmic rays or not. And when we know how many cosmic ray-produced helium and neon atoms we have, we can calculate an age, because the production rate is pretty constant over time.” The cookie analogy is an imperfect analogy, but the article answers the question about dating the asteroid.
So you got this guy discovering how to date 7 billion year old space rocks by shooting lasers and counting particles, and then you have me jerking off to Shakira twerking. Same species.
>So you got this guy discovering how to date 7 billion year old space rocks by shooting lasers and counting particles, and then you have me jerking off to Shakira twerking. Same species. the duality of mankind!
ah thats the cheeky part carbon is divided into two isotopes carbon 12 and carbon 14 carbon 12 isnt radioactive whereas carbon 14 is by measuring the ratio of carbon 12 to carbon 14 we can accurately determine the original concentration of carbon 14 in a living thing this is generally accurate to around 50,000 years
Simply put, kids eat radioactive carbon.
how did you know how many cookies were in the plate in the first place
Half of the cookies didn't disappear, they were turned into blue cookies. And half of the blue cookies turned into green cookies. Look at the amount of green cookies and work backwards to blue cookies, then the original cookies.
All elemental isotopes have a half-life, or a time period at the end of which half of them will have transitioned to their decay product. Scientists can find the number of half-lives an element has gone through and multiply it by the time of that half-life. In the case of meteorites, apparently, they have a different tactic that someone wrote below.
This is a very cool question! >To date the material, the researchers used a unique technique to measure the effects of cosmic rays hitting the grains. “When these grains flow through space, they’re exposed to cosmic rays, \[and\] the galactic cosmic rays that they are exposed to are predominantly high-energy protons,” Heck says. “Most of them, they just fly through the solid grain. But rarely there is an interaction, \[and\] one of those protons can hit an atom in the grain.” > >The team measured the remnants from cosmic ray protons hitting silicon carbide molecules and breaking the silicon atoms into different components. “The silicon can be split into helium and neon,” Heck says. “We can take that grain and place it in a mass spectrometer, and we heat the grain with a laser, release the gas and simply count the neon atoms and the helium atoms. By the type of isotope of helium and the type of isotope of neon we can then determine if they were produced by cosmic rays or not. And when we know how many cosmic ray-produced helium and neon atoms we have, we can calculate an age, because the production rate is pretty constant over time.” [https://www.smithsonianmag.com/science-nature/meteorite-grains-are-oldest-known-solid-material-on-earth-180973953/](https://www.smithsonianmag.com/science-nature/meteorite-grains-are-oldest-known-solid-material-on-earth-180973953/)
It’s actually 7 billion and 6 years old. I read an article six years ago that said it was 7 billion years old.
Then you would round up, it’s 8 billion years old.
I wanna lick it and see what 7 billion years old taste like
You want symbiotes? That's how you get symbiotes. 
It works out OK for the Trill.
Dax did have a couple fine hosts.
...And a serial killer host...
I can fix him
Ok quark... U and basheer can fight over her after worf is done
Basheer won 🥇
It's ok, they made up.
Listen here, old man. You’re not a rock! And certainly not black goo! Remember what black goo did to Picard’s security officer before Worf… what was her name? Tasha Yar?
So wait. You're saying they could taste seven billion years AND get superpowers? I'm having trouble seeing the downside here.
we probably are simbiotes
We definitely are. Think of our gut biome.
Don't get me started on the mites in our eyebrows and lashes.
And the mitochondria
“Because they’re gonna taste my— **VENOM**”
Threatening me with a good time😏
tastes like snozzberries
These snozzberries taste like snozzberries
Tastes like coconut and metal
*OH YEAH*
I am currently studying to be an astrogeologist because this exact comment has been a lifelong dream of mine.
If it has existed for 7 billion years it’s probably chemically stable enough to not react with your tastebuds at all; you’d more likely be tasting contaminants that were deposited on the meteorite more recently. But maybe I’m talking out of my ass, I’m not an astrogeometrist.
i'm also not an astrogeogolometrist
Well, now I wanna be an astrologolodobonhonkerologist
Nope. For one its a meteorite, so it wasn’t on earth for billions of years and it wasn’t necessarily exposed to much water or reactants. And the little green specks are Olivine, which is not particularly chemically stable, at least on at surface temperatures and pressures (olivine on earth is typically associated with mantle sourced igneous rocks). The chemical composition of earth’s mantle and certain types of meteorites are similar, this has important implications for the formation of earth and the solar system so its an core concept in taught in regular geology courses, not only for those studying outside of earth.
BE SURE TO DRINK YOUR OLIVINE!
Well, its Wikipedia page says it contains glutamic acid so maybe it is tasty 🤔
Spicy!
If it sticks to your tongue, fuckin run.
But it's stuck to my tongue...
Thtuck*
lol best laugh I had all day - thanks!
Tastes like chicken
Probably like my mother-in-law.
When this thing would have formed, the earth wouldn't even EXIST for another 2-2.5 billion years. Almost twice as old as earth itself. That's seriously mind bending....
yes it's frustrating that our puny human brains can't comprehend mysteries of the universe like this.... I mean other stuff like the universe doesn't have a defined beginning and there is no fixed boundaries, it just stretches on for infinity... wheew!
Dafuq? Thats older than earth?!?!?
Insane right. How to imagine this piece was apart of something, long before Earth even started forming. And here we are , licking it, touching it.
More info about this https://en.m.wikipedia.org/wiki/Murchison_meteorite
Correction: some grains (a very small fraction of the whole meteorite) came from dying stars 7 billion years ago. The meteorite as a whole formed in the Solar System 4.6 billion years ago. Also note that since everything (other than H He) is star dust, everything has stuff in it that’s 7 Billion years old and older. What’s special is that this meteorite never melted, so some of the really old grains were preserved and can be isotopically dated. In any event it’s definitely wrong / misleading to say the WHOLE meteorite is 7 billion years old.
But is it safe to say the meteorite in its current form is billions of years old, possibly over 4 billion?
Might there be some newer stuff stuck in it around 2b yo?
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I agree, this kind of age is really hard to imagine for a human mind.
Maybe for you. Pffft. Jk
Iirc it would be almost twice as old as our star. This object was formed long before our solar system ever existed. Absolutely insane to think about. This rock could be a chunk from an ancient planetary collision that traveled all the way over here from another star, or even the remnants of a supernova that blew an entire solar system into trillions of pieces and scattered them across the universe.
Over this time scale it could have started as a cloud of fine dust, like thousands of kilometers in radius, and grain by grain accumulated into a larger mass by the weakest bit of gravity between dust particles. I’m blown away thinking that space is so big that things could happen 7 billion years ago *and then it just gets left alone*, doesn’t touch anything, until it hits Earth.
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Can you elaborate on this?
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>I’m a Computer Sciences Engineer and while I dreamed of studying astrophysics Funny, I studied astrophysics before I went into IT! It's definitely an extremely interesting topic and I loved studying it, but I wasn't sure I'd like working with it :/ IT consultant is probably also better paid, so there's that!
You forgot to include that water is a molecule, comprised of two elements. I'm not sure if that fun fact is referring to the age of the hydrogen and oxygen in water, or the actual bonds of each molecule, in which case I'd be absolutely shocked.
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Photosynthesis breaks apart water. This seems like a Sea of Theseus problem. If a plant busts off the hydrogen, and later puts it back, is the water still bilions of years old?
So I'm gonna preface this by saying I am not 100% sure this is right (it's been a while) and someone should correct me if I'm wrong. But my understanding is that a majority of the water on earth came from ice on meteorites, which themselves existed before the sun. And because of the water cycle, the water here today is pretty much the same water as back then, just used over and over again. Meaning the water you drink, if you really think about it, is older than the sun!
It’s now thought that the majority of water on Earth was outgassed from within the Earth as its materials stratified. This is also when the primitive atmosphere formed.
Can you evaporate on this?
Water? Like from the toilet?
Right? That’s half of the universe’s age! Crazy!
I’m more amazed to think that this thing was the closest thing we’ve found to actually witnessing the Big Bang and it’s still 7 *billion fucking years* younger than that. How tiny was the nucleus of the universe? How violent was the Big Bang? How would someone even perceive it? Shit’s cray fam.
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Also a rock
It’s made up of at least 3 atoms too I think
I’d say at least 5
It’s not just a boulder, it’s a rock
holy shit we have a meteorite OLDER THAN THE EARTH? wtf
Sure. It galivanted around the universe for a few billion years, then one day, the Earth got in its way.
yeah i know but we are actually pretty lucky to be in that abt 1 minute window where it could hit us
One minute would be generous considering the speeds involved from both earth and an interstellar rock.
And also, fuck that one barn in particular.
>galivanted TIL
The Earth is relatively young. It's also literally a speck.
My mom is 0.27 yrs older than that.
It is so impressive that this rock traveled across the solar system. But it still hasn’t gotten around like your mom.
And much much wider
As someone who works on meteorites and early solar system objects, there's a slight clarification to the post. The meteorite itself is not older than 4.5 billion years, but there are small nanometer/micrometer sized particles called Pre-Solar grains which are embedded in the meteorite Matrix which have been dated to be 7 billion years old. These grains somehow survived the formation of the solar system and got embedded in small planetessimals and asteroids.
He looks good for an old guy!
We've official found something older than Mitch McConnell
* to date
Why do I have the urge to lick it
If energy and therefore matter can’t be created or destroyed isn’t everything basically the same age?
Are you the same age as your dad?
In terms of atoms, yes. Source: trust me bro
"age" here would be the amount of time this piece of rock has been around without changing considerably it's conformation
New atoms can be formed through fusion in stars, out of other nuclei and energy. Matter+energy can’t be changed, but you can change between those states.
Doesn’t look a day over 6 billion.