this post was submitted on 28 Apr 2026
370 points (98.9% liked)

science

26853 readers
1521 users here now

A community to post scientific articles, news, and civil discussion.

dart board;; science bs

rule #1: be kind

lemmy.world rules

founded 2 years ago
MODERATORS
 

This is a pallasite meteorite a rare slice of an ancient asteroid believed to have formed between its metallic core and rocky mantle over 4.5 billion years ago.

Those glowing crystal sections are olivine, meaning you’re looking at the shattered inner remains of a lost world from the dawn of our solar system.

Article: https://en.wikipedia.org/wiki/Pallasite

all 34 comments
sorted by: hot top controversial new old
[–] gandalf_der_12te@discuss.tchncs.de 65 points 5 days ago (5 children)

That is something that i never got. Isn't all material that old? I mean it didn't spontaneously jump into existence at a later time.

[–] NeverNudeNo13@lemmings.world 70 points 5 days ago (1 children)

I mean, technically yes but typically when they say something is this old they mean in the "last formed" state. Because while it's probably true that everything has always existed from the beginning of time, it hasn't stayed in the same state or form for very long.

It's like saying that cake has always existed because it's made of flour which is made from carbon which was created at the big bang.

But in truth, cake never existed before some one made the recipe for it and started arranging ingredients in a particular way to create cake.

[–] starik@lemmy.zip 24 points 5 days ago (3 children)

Only hydrogen and helium formed shortly after the big bang. The heavier elements like carbon were fused inside stars later, and the heaviest during supernovae. The carbon in that meteor is the same age as the carbon on Earth, since it was part of the same dust cloud that formed our solar system.

[–] NeverNudeNo13@lemmings.world 3 points 3 days ago

Yeap this is correct. I was just trying to illustrate the general idea in my reply. Things get funny on the other side too when you start considering decay and halflife as well.

[–] Quibblekrust@thelemmy.club 5 points 4 days ago (1 children)

And the heaviest from neutron star collisions.

The absolute heaviest is when your mom collides.

[–] Redacted@lemmy.world 3 points 4 days ago

I mean, technically yes but typically when they say something is formed at the Big Bang they mean in the hydrogen/helium state. Because while it's probably true that everything has always existed from the beginning of time, it hasn't stayed in the same state or form for very long.

[–] Gsus4@mander.xyz 6 points 5 days ago

yeah, "material" not as in individual atoms, but this here macroscopic structure made of said atoms.

[–] starik@lemmy.zip 5 points 5 days ago

Rocks on Earth aren’t that old because of plate tectonics.

[–] XeroxCool@lemmy.world 1 points 5 days ago

The comment reply to one of your comment replies explains it. Yes, to some degree, it's really the "last formed" date, but everything besides helium and hydrogen atoms had to be formed over time after the big bang by fusing inside stars. Even carbon.

https://lemmyverse.link/lemmy.zip/comment/26154715

[–] Lauchmelder@feddit.org 28 points 4 days ago (4 children)

isn't all material technically 4,500,000,000 years old?

I just took a shit that would beg to differ

[–] Tikiporch@lemmy.world 6 points 4 days ago (1 children)

The universe is estimated to be 13.8 billion years old.

[–] Nalivai@lemmy.world 3 points 4 days ago (1 children)

But it was mostly Hydrogen and Helium for the majority of it. Although I'm defining material as atoms now, so that also a matter of point of view.

[–] nomecks@lemmy.wtf 6 points 4 days ago (1 children)

It's still mostly hydrogen and helium

[–] Nalivai@lemmy.world 5 points 4 days ago

But, like, a little less so.

Older. We are all stardust from prior supernovae.

[–] vithigar@lemmy.ca 2 points 4 days ago

The question you're really asking requires more robust definitions of "material" and "old" then you usually deal with.

[–] Grimy@lemmy.world 19 points 4 days ago (1 children)

Make a dagger out of it, come on. It's meant to summon something through sacrifice, stop wasting it.

[–] AngryCommieKender@lemmy.world 7 points 4 days ago (2 children)

Olivine is used in refractory bricks, furnace casings, and foundry sand to make them more heat resistant. Not sure it would make a good knife.

[–] ripcord@lemmy.world 5 points 4 days ago

what if I am trying to knife a fire demon

[–] huquad@lemmy.ml 2 points 4 days ago

May your blade chip and shatter

[–] SaharaMaleikuhm@feddit.org 7 points 4 days ago (3 children)
[–] ripcord@lemmy.world 6 points 4 days ago (1 children)

Like the bottom of a grandma's purse.

Certain things that haven't seen light for millions of years. And also Werther's.

ugh this tastes like grandma

[–] eleitl@lemmy.zip 1 points 4 days ago

Metallic. With a touch of sulfides.

[–] bluesheep@sh.itjust.works 1 points 4 days ago

Those glowing crystal sections are olivine

Olives I guess

[–] DioramaOfShit@lemmy.world 2 points 3 days ago (1 children)

Wonder what it tastes like

[–] No1@aussie.zone 1 points 3 days ago

Can I haz noms?

I've played enough games to know damned well if I crush a chunk of that in my hand I'll get a power up. It'd probably be something stupid like +1 perception which would do jack shit with my piss poor eyesight.

[–] AccoSpoot1@lemmy.world 3 points 4 days ago (1 children)

Beautiful colours never before seen on earth

[–] ripcord@lemmy.world 5 points 4 days ago* (last edited 4 days ago)

Like slorange and negative umami

[–] Gsus4@mander.xyz 1 points 5 days ago

Can't stop looking at it 🫪