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Lyndie Chiou

@lyndie.bsky.social
2.5K followers 595 following 482 posts

Science writer | Scientific American | New Scientist | NYTimes | Quanta Magazine | #Black Stories on physics, math, astronomy! Also plays trombone.

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Lyndie Chiou @lyndie.bsky.social · 8h
"Mathematicians love to collect elegant, profound questions that defy proof. The longer the holdout, the better." This was a fun article to write! www.scientificamerican.com/article/math... #math #science
scientificamerican.com
Mathematicians name 50 of the highest-stakes problems in math
Mathematicians have a new bucket list of open questions to chase
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Lyndie Chiou @lyndie.bsky.social · 26/09/2026
It's a bird, it's a star, it's the Superman galaxy! About 105 million light years away. Image credit: my tiny telescope, about 8 hrs of 10s images #astronomy #science 🔭👩‍🔬
A galaxy whose arms look like the letter S. 

The core of this galaxy shows a remarkable shift in the radio regime, an indication that the galaxy is still struggling to settle after a merger.
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Lyndie Chiou @lyndie.bsky.social · 24/09/2026
It was going *so well* until this chess-loving security guard showed up to advise my teen! Let's just say I had fun walking amongst my troops and directing strategy against the duo-mind hive.
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Reposted by Lyndie Chiou
Lyndie Chiou @lyndie.bsky.social · 23/09/2026
Buried in a new math paper is a word you almost never see: "miraculously". And this paper contains the word not once, but twice! My latest for Scientific American... www.scientificamerican.com/article/math... #math #science
scientificamerican.com
Mathematicians use AI to find mysterious symmetries, solving decades-old problem
In parallel, a race by amateurs and mathematicians has found all 25,000 cases of one “inverse Galois problem”
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Lyndie Chiou @lyndie.bsky.social · 23/09/2026
Buried in a new math paper is a word you almost never see: "miraculously". And this paper contains the word not once, but twice! My latest for Scientific American... www.scientificamerican.com/article/math... #math #science
scientificamerican.com
Mathematicians use AI to find mysterious symmetries, solving decades-old problem
In parallel, a race by amateurs and mathematicians has found all 25,000 cases of one “inverse Galois problem”
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Reposted by Lyndie Chiou
bookswain.bsky.social @bookswain.bsky.social · 10/09/2026
You won’t regret taking a break from the other stuff to read this article about an amazing mathematician. She first started working in this problem 60 years ago and ‘closed the loop’ at age 99! 👇
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Lyndie Chiou @lyndie.bsky.social · 02/09/2026
A sole dark matter particle has *possibly* been detected with parameters that match more exotic dark matter theories. I wrote about those theories for Quanta: www.quantamagazine.org/dogged-dark-... #physics #science 👩‍🔬🔭
quantamagazine.org
Dogged Dark Matter Hunters Find New Hiding Places to Check | Quanta Magazine
Perhaps dark matter is made of an entirely different kind of particle than the ones physicists have been searching for. New experiments are springing up to look for these ultra-lightweight phantoms.
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Lyndie Chiou @lyndie.bsky.social · 28/08/2026
The clouds finally cleared just enough for a glance at the lunar eclipse! Still in progress, despite missing 96% totality in the Bay Area.
Lingering clouds capture the moon's light, sort of giving an effect of electricity.
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Lyndie Chiou @lyndie.bsky.social · 24/08/2026
Honestly, I don't get why people want to touch my hair, but the reaction is usually the same as what happened just now, "Wow, it's so soft!" Now you know! *not the best photo but I didn't want to look like I was taking a selfie with so many people around.
A furtive selfie of me on the subway kinda showing my spiral hair.
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Lyndie Chiou @lyndie.bsky.social · 20/08/2026
I've never posted a cat photo. Let this be my first! Here's the Cat's Eye galaxy. An intermediate spiral galaxy currently being sculpted, hence the ghostly outer region. Image credit: ~8hrs on my tiny smart telescope #science #astronomy 👩‍🔬🔭 #catsky #caturday
A galaxy with a spiral core, hazy region and even farther out, a very, very faint seemingly-circular ring. In fact, the hazy areas are forming into the galaxy's spiral arms.
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CosmicRami 🏳️‍🌈🏳️‍⚧️ @rami.spaceaustralia.com · 13/08/2026
So ........ what would YOU like to know about Neutron Stars? There's no such thing as a silly question, because neutron stars are .... well, silly objects that break brains! Tell us and we can see if we can collate articles, infographics, field specialists, historical context, or more! #NSWeek
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Lyndie Chiou @lyndie.bsky.social · 11/08/2026
On the right is Stephan's Quintet of galaxies. On the left is NGC 7331. And flagged for violating Hubble's Law is NGC 7343, the bright dot at the bottom center. 8 measurements have shown the galaxy to be much closer than expected. Image credit: 19 hrs on my tiny telescope 👩‍🔬🔭
A bright spiral galaxy on the left, a small gaggle of galaxies in the right, a sea of tiny galaxies in the background.
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Reposted by Lyndie Chiou
Lyndie Chiou @lyndie.bsky.social · 05/08/2026
Gauss noticed something strange about quadratic forms in 1801 -- a repeating pattern that sat unexplained for 200 years. Here's the story of how 2 mathematicians used just about every branch of math to finally understand it. www.scientificamerican.com/article/math... #science #math 👩‍🔬
scientificamerican.com
Mathematicians make a breakthrough on Gauss’s riddle, unsolved for 200 years
A solution to part of the Cohen-Lenstra conjecture helps resolve a long-standing mystery about quadratic forms
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Lyndie Chiou @lyndie.bsky.social · 06/08/2026
Sums of squares have fascinated mathematicians for centuries -- especially because of their strange ties to the prime numbers. Gauss wanted to study them more broadly. Here are the end-notes for my latest in Scientific American - the fascinating bits that didn't make it into the article: 1/
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Lyndie Chiou @lyndie.bsky.social · 05/08/2026
Gauss noticed something strange about quadratic forms in 1801 -- a repeating pattern that sat unexplained for 200 years. Here's the story of how 2 mathematicians used just about every branch of math to finally understand it. www.scientificamerican.com/article/math... #science #math 👩‍🔬
scientificamerican.com
Mathematicians make a breakthrough on Gauss’s riddle, unsolved for 200 years
A solution to part of the Cohen-Lenstra conjecture helps resolve a long-standing mystery about quadratic forms
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Reposted by Lyndie Chiou
Lyndie Chiou @lyndie.bsky.social · 24/07/2026
I interviewed 99-year old Joan Birman who must be the oldest author on a major breakthrough paper. As an added bonus: her team beat the guys trying to use AI! Please read and share about this human triumph: www.scientificamerican.com/article/how-... #science #math 👩‍🔬
scientificamerican.com
How a 99-year-old mathematician unraveled a century-old braid mystery
Joan Birman popularized the Burau representation problem decades ago. Now she and two colleagues have a proof that reveals brand new insights into the geometry of braids
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Lyndie Chiou @lyndie.bsky.social · 24/07/2026
I interviewed 99-year old Joan Birman who must be the oldest author on a major breakthrough paper. As an added bonus: her team beat the guys trying to use AI! Please read and share about this human triumph: www.scientificamerican.com/article/how-... #science #math 👩‍🔬
scientificamerican.com
How a 99-year-old mathematician unraveled a century-old braid mystery
Joan Birman popularized the Burau representation problem decades ago. Now she and two colleagues have a proof that reveals brand new insights into the geometry of braids
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Lyndie Chiou @lyndie.bsky.social · 21/07/2026
"Truth alone will endure, all the rest will be swept away before the tide of time." — Mahatma Gandhi The double-cluster in Perseus. Image credit: my tiny telescope, about 2.5 hours imaging #astronomy #astrophotography
Two star clusters, actually sitting close together in space. There are red giants scattered around as well as newly birthed blue stars near the core.
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Lyndie Chiou @lyndie.bsky.social · 17/07/2026
The Antennae Galaxies! Two colliding galaxies have unfurled sweeping tidal waves of stars that extend into deep space. About 72 million light years away from us. Image credit: 14 hrs on my tiny telescope. #astronomy #astrophotography 👩‍🔬🔭
Two misshapen galaxies are smashing against each other, with long tails trailing on either side. They sit in a field of stars.
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Lyndie Chiou @lyndie.bsky.social · 16/07/2026
I had a surprising conversation. A NASA engineer told me he was stuck at home early in the pandemic when his power went out and he couldn't find batteries for his calculator. So he used his slide rule. For one whole evening. Power was restored the next morning.
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Lyndie Chiou @lyndie.bsky.social · 28/05/2026
Prelude to a surprising late May storm, about to drench California.
A tiny window of sunset blanketed by dark clouds. Photo taken atop a hill with a view of city lights.
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Lyndie Chiou @lyndie.bsky.social · 18/04/2026
Tiny ducklings waddling together in a great sea of stars -- also known as M11 or the "Wild Duck Cluster". Image credit: my tiny telescope (about 2.5 hours) #astronomy #science 🔭👩🏾‍🔬
A dense starfield fills the entire frame with an even denser central cluster of stars.
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Lyndie Chiou @lyndie.bsky.social · 20/03/2026
Watching the moon set on a hot, muggy evening. Image credit: my tiny telescope.
Image of the moon with only a tiny sliver illuminated.
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Reposted by Lyndie Chiou
👻 Saavik ‘Spooky Season’ Ford 🎃 @saavikford.bsky.social · 18/03/2026
I have a black hole joke but I’m not sure you’d get anything out of it
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Lyndie Chiou @lyndie.bsky.social · 17/03/2026
Google photos auto-created an album of "photos of me" over the years.... and included this particular one 😂 Fortunately, my Lego doppelganger is incapable of implicating me in any real-world mischief!
Me, if I was a Lego figurine, battling a flying lion with a dagger and an axe.
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Lyndie Chiou @lyndie.bsky.social · 16/03/2026
Moonrise (about 1 hour before sunrise).
Pre-dawn blue hour. And the moon's crescent has barely risen above a mountain edge.
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Lyndie Chiou @lyndie.bsky.social · 13/03/2026
Happy π Day! To prep, feast on this article on a brand new discovery for the ancient constant. My latest slice for SciAm! It's irrationally enjoyable... 🥧 www.scientificamerican.com/article/math... #math #science #PiDay 🔭👩🏾‍🔬
scientificamerican.com
Mathematicians find one pi formula to rule them all
A mixture of AI and algorithms uncovered a hidden structure spanning 2,000 years of equations for pi
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Lyndie Chiou @lyndie.bsky.social · 13/03/2026
Happy π Day! To prep, feast on this article on a brand new discovery for the ancient constant. My latest slice for SciAm! It's irrationally enjoyable... 🥧 www.scientificamerican.com/article/math... #math #science #PiDay 🔭👩🏾‍🔬
scientificamerican.com
Mathematicians find one pi formula to rule them all
A mixture of AI and algorithms uncovered a hidden structure spanning 2,000 years of equations for pi
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Lyndie Chiou @lyndie.bsky.social · 13/03/2026
Woot!
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Lyndie Chiou @lyndie.bsky.social · 11/03/2026
The ancient remains of Abell 31, a planetary nebula that is dissolving back into the Milky Way as its central star nears the white dwarf stage. Image credit: 15 hrs on my tiny telescope #science #astronomy 🔭👩🏾‍🔬
Nebulous blue gas surrounded by red gas against a sea of stars. Looks a bit like a galactic flower.
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Roger Freedman @rogerfreedman.bsky.social · 10/03/2026
For #WomensHistoryMonth: Let us celebrate the life and accomplishments of French mathematician and physicist Émilie du Châtelet (1706-1749). She spread the then-new ideas of Isaac Newton on the Continent, and played a key role in developing the idea of energy conservation. 🎢⚛️🧪 #WomenInSTEM 🧵1/7
Portrait of Émile du Châtelet by Maurice Quentin de la Tour
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Lyndie Chiou @lyndie.bsky.social · 07/03/2026
The Flaming Star Nebula, IC 405: the lucky accident of a wandering star lighting up a gas cloud as it passes through. Image credit: my tiny telescope #science #astronomy 🔭👩🏾‍🔬
A huge flame-like red nebula inside a sea of colorful stars
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Lyndie Chiou @lyndie.bsky.social · 05/03/2026
Just wanted to share this again because BlueSky had a big outage when I shared it the first time. My latest for Scientific American: www.scientificamerican.com/article/are-... #science #physics #math 🔭👩🏾‍🔬
scientificamerican.com
Are prime numbers hiding inside black holes?
The strange case for prime numbers at the heart of physics
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Lyndie Chiou @lyndie.bsky.social · 05/03/2026
My grandfather fixed radios on the Black side of town. White-owned repair shops also brought him radios they couldn't fix. He made enough money to open a few grocery stores as a "retirement business".
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Lyndie Chiou @lyndie.bsky.social · 03/03/2026
My latest for Scientific American! The prime numbers -- math's "fundamental particles" -- may help to unravel some of the universe's most elusive secrets. www.scientificamerican.com/article/are-... #math #physics #science 🔭👩🏾‍🔬
scientificamerican.com
Are prime numbers hiding inside black holes?
The strange case for prime numbers at the heart of physics
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Lyndie Chiou @lyndie.bsky.social · 03/03/2026
My latest for Scientific American! The prime numbers -- math's "fundamental particles" -- may help to unravel some of the universe's most elusive secrets. www.scientificamerican.com/article/are-... #math #physics #science 🔭👩🏾‍🔬
scientificamerican.com
Are prime numbers hiding inside black holes?
The strange case for prime numbers at the heart of physics
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Lyndie Chiou @lyndie.bsky.social · 24/02/2026
The continents may have separated 200 million years ago, but plumes of their soils still cross the ocean like postcards between ancient friends. H/t @rami.spaceaustralia.com
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Lyndie Chiou @lyndie.bsky.social · 21/02/2026
After weeks of rain -- the Owl Nebula soars high above the Surfboard Galaxy, which surfs enormous interstellar tides. Image credit: my tiny telescope #astronomy #science 🔭👩🏾‍🔬
Owl Nebula is a planetary nebula with multiple shells that give it an owlish appearance-- an outer sphere and an inner torus-like structure.

The Surfboard Galaxy is a jumbled ness of star forming patches and evidence of past interactions with the Universe's interstellar tides.
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Lyndie Chiou @lyndie.bsky.social · 18/02/2026
I just realized that today is Chinese New Year, the 1st day of Ramadan, AND Fat Tuesday. That means the Chinese new moon lined up with the Ramadan crescent and also fell exactly the right amount of time before the Easter full moon. An extremely rare lineup of 3 major moon-based traditions!
Waxing moon -- we had a stormy day (with lightning and thunder!) so this is one I took about a month ago.
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Lyndie Chiou @lyndie.bsky.social · 13/02/2026
International Women in Science Day fell on Feb 10th. I had the honor of being featured in a blog post by the smart telescope company Vaonis (the brand of telescope I use)! vaonis.com/blogs/travel... 👩🏾‍🔬🔭
vaonis.com
International Day of Women and Girls in Science - Portraits
Four stories to celebrate science and curiosity. On the occasion of the International Day of Women and Girls in Science, we would like to celebrate those who help advance science, and those who make i...
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Lyndie Chiou @lyndie.bsky.social · 11/02/2026
Just like the snake-haired Medusa of Greek mythology, this nebula's head writhes with tangled thick filaments, leading to its name, the Medusa Nebula. The result of a star cooling into a white dwarf. Image credit: my tiny telescope #science #astronomy 🔭👩🏾‍🔬
An oblong red gas cloud with stringy filaments against a black background. There's some blue too from OIII emissions.
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Michael Kinyon @profkinyon.bsky.social · 30/01/2026
"...Aristarchus has brought out a book consisting of certain hypotheses... His hypotheses are that the fixed stars and the sun remain unmoved, that the earth revolves about the sun on the circumference of a circle, the sun lying in the middle of the orbit..." -- Archimedes, _The Sand Reckoner_
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CosmicRami 🏳️‍🌈🏳️‍⚧️ @rami.spaceaustralia.com · 30/01/2026
Gorgeous image! Can you believe, that in the next weeks to a few months, there are going to be four humans which are going to go in a spaceship and sail around the other side of this other world that just hangs in our sky. Go look at the Moon. Four people will be on the other side of it soon.
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Lyndie Chiou @lyndie.bsky.social · 30/01/2026
See the solitary bright crater on the lower left? It's named after Aristarchus of Samos, who proposed that the Earth orbits the sun 1,800 years before Copernicus. An unbelievably insightful idea for its day (sadly ignored). Image taken tonight by my tiny telescope. #science #history 🔭👩🏾‍🔬
An 87% full moon with a bright spot on the lower left.
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Lyndie Chiou @lyndie.bsky.social · 21/01/2026
The beautiful Markarian chain, a drooping string of distant galaxies. And the loner who refuses to join the party, M87 on the lower left, hiding a supermassive black hole inside its heart. Image credit: my tiny telescope #science #astronomy 🔭👩🏾‍🔬
A drooping string of glowing galaxies. They only appear to line up as seen from Earth. If you were able to look from a different angle, they wouldn't appear to be spaced so closely together. On the lower left is M87, a bright galaxy with a supermassive black hole. It coincides with the dark-matter-dominated gravitational center of the Virgo Cluster.
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Lyndie Chiou @lyndie.bsky.social · 19/01/2026
Not many connect math and Dr. Martin Luther King. But in 7th grade, I saw my geometry teacher silently weep through the school's MLK Day assembly, hiding his eyes behind a napkin. An unintended gesture that placed a symbolic welcome mat in front of his math-covered chalkboards.
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Lyndie Chiou @lyndie.bsky.social · 16/01/2026
Good morning from the moon...
A sliver of a moon in an orange sky. A lone silhouette of a tree on a mountain.
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Lyndie Chiou @lyndie.bsky.social · 12/01/2026
The Perseus Galaxy Cluster. A thousand galaxies trapped inside a cosmic web of filaments containing hundreds of thousands more. Image credit: my tiny telescope #science #astronomy 👩🏾‍🔬🔭
A densely packed image of fuzzy circular shapes. Most are galaxies, not stars.
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Lyndie Chiou @lyndie.bsky.social · 06/01/2026
History forms when order breaks. In this case, NGC 660 is wearing its history at an angle. Long ago, a collision yanked its outer arms away from the core, leaving a warped galaxy, which still manages to hold itself together. Image credit: my tiny telescope (about 15 hrs) #science #astronomy 👩🏾‍🔬🔭
A galaxy with a horizontal core and outer rings at a 45-degree angle.
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Lyndie Chiou @lyndie.bsky.social · 03/01/2026
How to enjoy an iced latte in Detroit!
A woman in the middle of a snowstorm holding 2 beverages. The wind is blowing her hair over her face.
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