microscopic image of micrometeorites
January 1, 2025 at 1:36 PM
microscopic image of micrometeorites
"Protocells" have been shown to self-assemble on micrometeorites 🧪
Which is intriguing as organic compounds are sometimes found on meteorites, and micrometeorites would rain down on planets 🌍 throughout the universe
www.newscientist.com/article/2486...
Which is intriguing as organic compounds are sometimes found on meteorites, and micrometeorites would rain down on planets 🌍 throughout the universe
www.newscientist.com/article/2486...
Protocells self-assembling on micrometeorites hint at origins of life
Micrometeorites are thought to shower down on planets throughout the universe, so the discovery that they help protocells form could tell us something about the chances of life elsewhere
www.newscientist.com
July 1, 2025 at 5:16 PM
"Protocells" have been shown to self-assemble on micrometeorites 🧪
Which is intriguing as organic compounds are sometimes found on meteorites, and micrometeorites would rain down on planets 🌍 throughout the universe
www.newscientist.com/article/2486...
Which is intriguing as organic compounds are sometimes found on meteorites, and micrometeorites would rain down on planets 🌍 throughout the universe
www.newscientist.com/article/2486...
space is also less incredibly corrosive but also has micrometeorites
May 16, 2026 at 3:44 AM
space is also less incredibly corrosive but also has micrometeorites
Datacenters famously need vast amounts of coolant, which is not available in orbit. The result is you need insanely large heat radiation systems. The result of THAT is a vast *vast* cross-sectional area, in an environment with fast ions and micrometeorites.
February 5, 2026 at 1:24 PM
Datacenters famously need vast amounts of coolant, which is not available in orbit. The result is you need insanely large heat radiation systems. The result of THAT is a vast *vast* cross-sectional area, in an environment with fast ions and micrometeorites.
Did you know? Buzz Aldrin's footprint on the Moon will last ~10 million years before it is erased by rain of micrometeorites.
April 4, 2026 at 12:58 PM
Did you know? Buzz Aldrin's footprint on the Moon will last ~10 million years before it is erased by rain of micrometeorites.
Les micrométéorites & débris orbitaux se déplacent à plusieurs km/s et constituent une menace pour les engins spatiaux.
Ici test de bouclier (couche 1 : aluminium + couche 2 : matériau composite + coque pressurisée) pour la future station Haven-1 de la société américaine du secteur spatial Vast :
Ici test de bouclier (couche 1 : aluminium + couche 2 : matériau composite + coque pressurisée) pour la future station Haven-1 de la société américaine du secteur spatial Vast :
December 11, 2024 at 10:22 AM
Les micrométéorites & débris orbitaux se déplacent à plusieurs km/s et constituent une menace pour les engins spatiaux.
Ici test de bouclier (couche 1 : aluminium + couche 2 : matériau composite + coque pressurisée) pour la future station Haven-1 de la société américaine du secteur spatial Vast :
Ici test de bouclier (couche 1 : aluminium + couche 2 : matériau composite + coque pressurisée) pour la future station Haven-1 de la société américaine du secteur spatial Vast :
Micrometeorites are thought to shower down on planets throughout the universe, so the discovery that they help protocells form could tell us something about the chances of life elsewhere
Protocells self-assembling on micrometeorites hint at origins of life
Micrometeorites are thought to shower down on planets throughout the universe, so the discovery that they help protocells form could tell us something about the chances of life elsewhere
www.newscientist.com
July 17, 2025 at 1:03 AM
Micrometeorites are thought to shower down on planets throughout the universe, so the discovery that they help protocells form could tell us something about the chances of life elsewhere
Right? “We’re worried about micrometeorites so I hit it really hard with a hammer!”
August 22, 2024 at 2:32 PM
Right? “We’re worried about micrometeorites so I hit it really hard with a hammer!”
Réponse de l'image-mystère d'hier :
Ce grain cosmique de 70 microns, récolté au cœur de l’Antarctique à proximité de la station franco-italienne Concordia, fait partie des 5 200 tonnes de micrométéorites provenant de comètes ou d’astéroïdes qui atteignent le sol terrestre chaque année.
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Ce grain cosmique de 70 microns, récolté au cœur de l’Antarctique à proximité de la station franco-italienne Concordia, fait partie des 5 200 tonnes de micrométéorites provenant de comètes ou d’astéroïdes qui atteignent le sol terrestre chaque année.
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Bonjour à toutes et à tous.
Nouvelle semaine, nouvelle image-mystère du lundi.
A votre avis, que voyons-nous ici ?
N'hésitez pas à mettre vos propositions en commentaire et je posterai la réponse en fin de journée 👍
Nouvelle semaine, nouvelle image-mystère du lundi.
A votre avis, que voyons-nous ici ?
N'hésitez pas à mettre vos propositions en commentaire et je posterai la réponse en fin de journée 👍
November 11, 2025 at 8:46 AM
Réponse de l'image-mystère d'hier :
Ce grain cosmique de 70 microns, récolté au cœur de l’Antarctique à proximité de la station franco-italienne Concordia, fait partie des 5 200 tonnes de micrométéorites provenant de comètes ou d’astéroïdes qui atteignent le sol terrestre chaque année.
1/2
Ce grain cosmique de 70 microns, récolté au cœur de l’Antarctique à proximité de la station franco-italienne Concordia, fait partie des 5 200 tonnes de micrométéorites provenant de comètes ou d’astéroïdes qui atteignent le sol terrestre chaque année.
1/2
Micrometeorites are thought to shower down on planets throughout the universe, so the discovery that they help protocells form could tell us something about the chances of life elsewhere
Protocells self-assembling on micrometeorites hint at origins of life
Micrometeorites are thought to shower down on planets throughout the universe, so the discovery that they help protocells form could tell us something about the chances of life elsewhere
www.newscientist.com
July 1, 2025 at 12:42 PM
Micrometeorites are thought to shower down on planets throughout the universe, so the discovery that they help protocells form could tell us something about the chances of life elsewhere
It's not just human-made stuff, though. The Moon is struck by meteorites, micrometeorites, interplanetary dust and high energy particles, like cosmic rays, all the time. They pulverise, charge, and turn the Moon's surface over in a process called impact gardening. 🧪 🔭
Impact gardening - Wikipedia
en.wikipedia.org
August 3, 2026 at 12:13 PM
It's not just human-made stuff, though. The Moon is struck by meteorites, micrometeorites, interplanetary dust and high energy particles, like cosmic rays, all the time. They pulverise, charge, and turn the Moon's surface over in a process called impact gardening. 🧪 🔭
Protocell Formation On Micrometeorites
astrobiology.com/2025/04/prot... #astrobiology #originoflife #meteorite
astrobiology.com/2025/04/prot... #astrobiology #originoflife #meteorite
Protocell Formation On Micrometeorites - Astrobiology
We report on the formation of membranous protocells by self-assembly of lipids on micrometeorites
astrobiology.com
April 14, 2025 at 4:05 PM
Protocell Formation On Micrometeorites
astrobiology.com/2025/04/prot... #astrobiology #originoflife #meteorite
astrobiology.com/2025/04/prot... #astrobiology #originoflife #meteorite
No astronomy per se in this week's issue of @science.org, but there is a fascinating study by Pavia et al. that uses cosmic dust to trace sea ice coverage in the Arctic. 3He from micrometeorites records when the ocean was ice free, over the last 30,000 years. 🧪🌊
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
November 6, 2025 at 7:33 PM
No astronomy per se in this week's issue of @science.org, but there is a fascinating study by Pavia et al. that uses cosmic dust to trace sea ice coverage in the Arctic. 3He from micrometeorites records when the ocean was ice free, over the last 30,000 years. 🧪🌊
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Micrometeorites are thought to shower down on planets throughout the universe, so the discovery that they help protocells form could tell us something about the chances of life elsewhere
Protocells self-assembling on micrometeorites hint at origins of life
Micrometeorites are thought to shower down on planets throughout the universe, so the discovery that they help protocells form could tell us something about the chances of life elsewhere
www.newscientist.com
July 18, 2025 at 3:39 AM
Micrometeorites are thought to shower down on planets throughout the universe, so the discovery that they help protocells form could tell us something about the chances of life elsewhere
Mineral Matters # 746 - Magnetite with Micrometeorites?
#mineralmatters #minerals #🧪 open.substack.com/pub/mineralm...
#mineralmatters #minerals #🧪 open.substack.com/pub/mineralm...
Magnetite with Micrometeorites?
Mineral Matters #746
open.substack.com
July 5, 2025 at 12:57 AM
Mineral Matters # 746 - Magnetite with Micrometeorites?
#mineralmatters #minerals #🧪 open.substack.com/pub/mineralm...
#mineralmatters #minerals #🧪 open.substack.com/pub/mineralm...
Scientists just found ancient air trapped in space dust.
Tiny micrometeorites melt as they fall through our atmosphere, grab oxygen from the air, cool, and lock that signature inside.
This could give us real samples of ancient air.
Wild.
🧪 #SciComm
buff.ly/vGxDfWE
Tiny micrometeorites melt as they fall through our atmosphere, grab oxygen from the air, cool, and lock that signature inside.
This could give us real samples of ancient air.
Wild.
🧪 #SciComm
buff.ly/vGxDfWE
Scientists Found Ancient Air Trapped in Space Dust
How Micrometeorites Preserved Earth’s Ancient Air for Hundreds of Millions of Years
medium.com
November 14, 2025 at 1:59 PM
Scientists just found ancient air trapped in space dust.
Tiny micrometeorites melt as they fall through our atmosphere, grab oxygen from the air, cool, and lock that signature inside.
This could give us real samples of ancient air.
Wild.
🧪 #SciComm
buff.ly/vGxDfWE
Tiny micrometeorites melt as they fall through our atmosphere, grab oxygen from the air, cool, and lock that signature inside.
This could give us real samples of ancient air.
Wild.
🧪 #SciComm
buff.ly/vGxDfWE
One of our KICP Postdoctoral Fellows noticed that the composition of Avi Loeb's supposed extraterrestrial micrometeorites have a near-perfect composition match to the composition of coal ash, i.e. anthropogenic contamination.
RNAAS here: iopscience.iop.org/article/10.3...
RNAAS here: iopscience.iop.org/article/10.3...
Anthropogenic Coal Ash as a Contaminant in a Micro-meteoritic Underwater Search - IOPscience
iopscience.iop.org
November 2, 2023 at 3:37 AM
One of our KICP Postdoctoral Fellows noticed that the composition of Avi Loeb's supposed extraterrestrial micrometeorites have a near-perfect composition match to the composition of coal ash, i.e. anthropogenic contamination.
RNAAS here: iopscience.iop.org/article/10.3...
RNAAS here: iopscience.iop.org/article/10.3...
Expected radiation damage has *not* been found on Uranus’ moons, but a couple of them do appear to be surprisingly dusty because of micrometeorites 🧪🔭 www.space.com/astronomy/ur...
'Uranus is weird.' Big moons of tilted ice giant hide a magnetic mystery, Hubble telescope reveals
"Uranus is weird, so it's always been uncertain how much the magnetic field actually interacts with its satellites."
www.space.com
June 16, 2025 at 12:08 PM
Expected radiation damage has *not* been found on Uranus’ moons, but a couple of them do appear to be surprisingly dusty because of micrometeorites 🧪🔭 www.space.com/astronomy/ur...
How does the Moon's atmosphere get its particles? ☄️ Space debris and micrometeorites constantly pummel the lunar surface, kicking up atoms and dust into the near-emptiness. This continuous shuffling of rock is called "impact gardening." 🪨
4/4
4/4
June 29, 2026 at 8:20 PM
How does the Moon's atmosphere get its particles? ☄️ Space debris and micrometeorites constantly pummel the lunar surface, kicking up atoms and dust into the near-emptiness. This continuous shuffling of rock is called "impact gardening." 🪨
4/4
4/4
The thought that stuff is raining down on Earth from space, ALL THE TIME is kinda crazy.
You can find micrometeorites in your roof gutters if you look. Honest. Go look with a magnet.
But this one is stunning. And on video.
You can find micrometeorites in your roof gutters if you look. Honest. Go look with a magnet.
But this one is stunning. And on video.
January 14, 2025 at 4:36 PM
The thought that stuff is raining down on Earth from space, ALL THE TIME is kinda crazy.
You can find micrometeorites in your roof gutters if you look. Honest. Go look with a magnet.
But this one is stunning. And on video.
You can find micrometeorites in your roof gutters if you look. Honest. Go look with a magnet.
But this one is stunning. And on video.
Most of the moon suffers constant bombardment from micrometeorites. You're not going to have giant fields of solar panels. Not that a reactor is that much more viable at this time. All of this is silly.
October 4, 2026 at 6:00 PM
Most of the moon suffers constant bombardment from micrometeorites. You're not going to have giant fields of solar panels. Not that a reactor is that much more viable at this time. All of this is silly.
New CO2 proxy just dropped! Micrometeorites! ⚒️🧪
phys.org/news/2025-07...
phys.org/news/2025-07...
Scientists use cosmic dust to reconstruct Earth's atmospheric history
Since the beginning of Earth's history, tiny particles of rock and metal from space have been hitting our planet. On clear nights, we can even see their traces as shooting stars. Trapped in layers of ...
phys.org
July 31, 2025 at 12:53 AM
New CO2 proxy just dropped! Micrometeorites! ⚒️🧪
phys.org/news/2025-07...
phys.org/news/2025-07...
A cool study! The kind of work *someone* should have fine *before* a big press release claiming to have found interstellar micrometeorites 😊😉🔭🧪
One of our KICP Postdoctoral Fellows noticed that the composition of Avi Loeb's supposed extraterrestrial micrometeorites have a near-perfect composition match to the composition of coal ash, i.e. anthropogenic contamination.
RNAAS here: iopscience.iop.org/article/10.3...
RNAAS here: iopscience.iop.org/article/10.3...
Anthropogenic Coal Ash as a Contaminant in a Micro-meteoritic Underwater Search - IOPscience
iopscience.iop.org
November 2, 2023 at 7:52 AM
A cool study! The kind of work *someone* should have fine *before* a big press release claiming to have found interstellar micrometeorites 😊😉🔭🧪
This week’s #MicrometeoriteMonday: A polished scoriaceous micrometeorite from the Sør Rondane Mountains, Antarctica! Unlike fully melted cosmic spherules, scoriaceous micrometeorites are only partially melted and tend to contain abundant vesicles formed by devolatilization. ☄️
@amgc-vub.bsky.social
@amgc-vub.bsky.social
September 28, 2026 at 11:50 AM
This week’s #MicrometeoriteMonday: A polished scoriaceous micrometeorite from the Sør Rondane Mountains, Antarctica! Unlike fully melted cosmic spherules, scoriaceous micrometeorites are only partially melted and tend to contain abundant vesicles formed by devolatilization. ☄️
@amgc-vub.bsky.social
@amgc-vub.bsky.social
Also...there's no way to protect them. Absolutely none. From radiation, micrometeorites, nothing.
February 3, 2026 at 12:29 AM
Also...there's no way to protect them. Absolutely none. From radiation, micrometeorites, nothing.