iiinova — where your digital self keeps evolving

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Oct. 1, 1847, Nantucket (MA). That evening, 29-year-old #MariaMitchell went to the roof of their home above the Pacific Bank. With a small 2-inch telescope she spotted a fuzzy object 5° above Polaris, the North Star. It wasn't on the charts. It was moving. A telescopic #comet. 🔭🧪⚛️ #HistSci

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Nereide @drnereide.bsky.social · 30/09/2026

This is one of the largest images #JWST has ever put out. IC 348 is a stellar nursery about 1,000 light-years away in Perseus. Shot in 2024; public view of a 2025 paper. The image release is from 2026: esawebb.org/news/weic2619/ 🔭🧪⚛️ #stellarastro #stars

Image Description from ESA: A star-forming region. It is blanketed in thick clouds of gas and dust, millions of kilometres across, that form swirling patterns. Bright stars are scattered throughout the clouds, with the densest cluster situated in the centre of the scene. Each is crowned with six long points created by the optics of the telescope’s mirrors. In the upper right, a couple of hidden stars blast out long, glowing jets of material.

https://esawebb.org/images/weic2619a/

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Nereide @drnereide.bsky.social · 02/10/2025

🧵 Question: "If chimps are so much like us, why are they endangered while humans dominate the globe?" Goodall: "Well, in some ways we're not successful at all. We're destroying our home. That's not a bit successful." — #JaneGoodall, 3 Apr. 1934 - 1 Oct. 2025 #ForeverInspiring #LegacyOfHope 🧪

The photo features Jane Goodall and infant chimpanzee Flint reach out to touch each other's hands. Flint was the first infant born at Gombe (Tanzania) after Jane arrived. With him, she had a great opportunity to study chimp development.

Photo source: https://education.nationalgeographic.org/resource/jane-goodall/

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Nereide @drnereide.bsky.social · 4h

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Nereide @drnereide.bsky.social · 29/09/2026

#OTD in 1901, #EnricoFermi was born. His scientific work stands out for originality and range. He was an exceptional scientist, capable of lightning-fast intuitions, but also a tireless worker, deeply human towards colleagues, students, family, friends. A thread.⤵️ ⚛️🔭🧪 #HistSci #Physics

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Nereide @drnereide.bsky.social · 27/09/2026

Think you know Jupiter? In ultraviolet light, it can look like almost another planet. Dark poles, a dark Great Red Spot, one bright oval that fades. #Hubble reveals clouds and hazes the eye cannot see. 📷NASA, ESA, Hubble, Judy Schmidt apod.nasa.gov/apod/ap18101... 🧪🔭⚛️ #planetsci #astronomy

Jupiter sits big and round against black. This is near-ultraviolet, false color.
Bands run across the disk in cyan, pink and muted brown instead of the usual cream and orange. The poles look darker brown with slightly pinkish clues. On the left side of the planet a large storm, the Great Red Spot, is also dark rather than red. Just to its right a smaller oval that would look white in visible light is similarly dark. Farther right a chain of storms, the String of Pearls, stands out bright pink.A small round disk at upper left, off the planet’s limb, is Ganymede.
A thin credit line at lower right reads NASA, ESA, Hubble, Processing: Judy Schmidt.

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Nereide @drnereide.bsky.social · 25/09/2026

This extraordinary image was created by reprocessing & merging 16 frames from Voyager 1's flyby of Jupiter in 1979. Just right of center, you can see the Great Red Spot, a huge storm system. ➡️ apod.nasa.gov/apod/ap20062... Credit: NASA/JPL-Caltech/A. Tranchandon 🔭🧪⚛️ #histsci #planetsci

Voyager 1 view of Jupiter. Banded clouds wrap the planet in beige, cream & pale brown. Just right of center sits the Great Red Spot, an oval storm flushed orange-red. Lower left, the bright disk of Europa is visible. Upper right, a round dark patch marks Io’s shadow on the cloud tops.

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Nereide @drnereide.bsky.social · 06/11/2025

In this splendid photo from Valerio Minato three wonders were captured in a single shot: - the Basilica of Superga, located near Turin (Italy) - the Monviso, the highest mountain of the Cottian Alps - the setting Moon, captured in a crescent phase ➡️ apod.nasa.gov/apod/ap23122... 🔭 🧪 #sciart 1/2

Look at this night, it seems hand-painted. In front of everything is Superga, illuminated as if someone had turned on only the hottest bulbs: the dome and the golden columns; the lights outline arches and balconies as if the church were breathing softly. Thirty kilometers away, Monviso appears like a giant of gray-blue rock like the sky. And right towards the summit, there's a thin, ivory-colored crescent moon. It's so bright you can see the entire circle: the dark part is illuminated by that terrestrial reflection called "da Vinci light."
The photo is a long, 30-second expanse: the silence is palpable. Imagine the cold stone, the Alpine wind, the scent of distant snow.

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Nereide @drnereide.bsky.social · 30/09/2026

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ESA Space Science @science.esa.int · 30/09/2026

Inspector Smile is ready for science! 🫡 This is Smile’s first ultraviolet view showing an auroral substorm. With the ultraviolet camera now operational, Smile becomes the first spacecraft since 2008 to capture the full ring of northern lights around the north pole in ultraviolet light. 🔭 🧪 ☀️

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Nereide @drnereide.bsky.social · 29/09/2026

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Nereide @drnereide.bsky.social · 06/07/2025

🧵 In this gorgeous image, Lyman Insley captured the bright heart of the Rosette Nebula where lies NGC 2244 (Caldwell 50 or Satellite Cluster), an open cluster located some 5,200 ly away in Monoceros. ➡️ apod.nasa.gov/apod/ap23020... NGC 2244 consists of hot, blue stars denoting a young age 🔭 🧪

The image shows the heart of the Rosette Nebula, a vast cloud of gas and dust in space. It is a vibrant astronomical image, with a cluster of bright stars (NGC 2244) at the center, shining with white or pale yellow light, like a sparkling chandelier. The nebula is illuminated in vivid colors: red (sulfur), green (hydrogen) and blue (oxygen). The red areas appear as soft warm glows, the green/turquoise ones form a diffuse and predominant haze, while the blue adds ethereal touches, similar to thin veils of fog. Filaments of gas and dust, like wisps of smoke or translucent curtains, weave across the scene, with some darker areas where dust obscures the light. The center, similar to a deep cavity, is dotted with distant stars, giving a sense of cosmic vastness. The image conveys a sense of energy, with a wind of particles that seems to radiate from the central stars, creating a dynamic, three-dimensional effect.

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Nereide @drnereide.bsky.social · 16/12/2025

🧵 Ever wonder what the baby universe looked like—just 800 million years after the Big Bang? JWST has given us an amazing glimpse via a galaxy called Virgil, hidden in the iconic Hubble eXtreme Deep Field. ➡️ news.arizona.edu/news/monster... 🔭 🧪 #extragalactic #science #cosmology #JWST 1/11

A deep-space image from the James Webb Space Telescope shows a small patch of sky filled with thousands of distant galaxies as faint, diffuse spots and streaks in shades of blue, white, and subtle reds against a black background. An inset box zooms in on the reddish, compact galaxy Virgil, seen as it existed 800 million years after the Big Bang, highlighting its hidden supermassive black hole shrouded in dust.

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Nereide @drnereide.bsky.social · 28/09/2026

A supply shock is not a transition. 2008–2009 (the global financial crisis) and Covid already showed that. Aviation took 4–5 years to return. #Hormuz can cut oil use for a while; then the system rebounds. 🧪⚛️ #climate #science

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Nereide @drnereide.bsky.social · 27/09/2026

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Nereide @drnereide.bsky.social · 25/09/2026

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Nereide @drnereide.bsky.social · 24/09/2026

Any convex quad can look like a square if you choose the right viewpoint. That’s the video. #MathSky #iTeachMath 🧪

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Nereide @drnereide.bsky.social · 24/09/2026

Any convex quad can look like a square if you choose the right viewpoint. That’s the video. #MathSky #iTeachMath 🧪

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Nereide @drnereide.bsky.social · 22/09/2026

This is a stunning lunar corona, visible in Death Valley. A corona is an optical phenomenon you may see when thin clouds partially veil the Sun or the Moon. Photo: Arpan Das Source: epod.usra.edu/blog/2021/08... 🔭🧪⚛️ #sciart #science #optics

A night landscape in Death Valley. In the foreground the playa is dry and cracked. The ground is broken into blue-grey plates of mud or salt, divided by dark fissures. Near the bottom center one crack forms a wide, almost round shape, like a plate that has split. Some of those surfaces pick up a faint gloss from the moonlight.A dark mountain range sits farther back, low and uneven against the sky. The Moon is high and very bright. The disk is overexposed, almost a white glare. A lunar corona surrounds it. First comes a bright aureole. Outside that the colour changes. Near the Moon it is bluish-white. Then green. Then yellow. At the edge there is a faint pink-violet rim. The rings stay soft and run into one another.
Thin, streaky clouds drift across the sky, partly veiling the Moon and helping form the corona. The night sky offers a magical view. The whole scene is cast in cool blue tones, quiet and wide.

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Nereide @drnereide.bsky.social · 23/09/2026

Happy Equinox Day, Earthlings? ;) Autumnal (or Fall) #equinox 2026 occurred on 23 Sept. at 00:05 UTC (22 Sept. at 8:05 p.m. EDT). Image by CIMSS / SSEC, UW–Madison. Image Source: cimss.ssec.wisc.edu/satellite-bl... #Astronomy 🔭🧪⚛️

Half-lit Earth from space, with a nearly vertical day–night line running from north to south. The left side of the globe is in darkness; the right side shows the Pacific Ocean, swirling cloud systems, and two cyclones. The straight terminator indicates the Sun standing over the equator at the September equinox.

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Nereide @drnereide.bsky.social · 23/09/2026

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Matt Henderson @matthen.com · 23/09/2026

Repeatedly subdividing a triangle using its centroids

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Nereide @drnereide.bsky.social · 21/09/2026

At some 53 Mly, by the Virgo Cluster, sit galaxies whose surface light sits close to the sky level. Few stars, spread over a huge area. A study of Rubin LSST DP2 data reports 7 of them, around galaxy M49. Image: Fig. 1 of the paper. NSF–DOE Vera C. Rubin data (DP2). 🔭 🧪 ⚛️ #cosmology

Figure composed of seven side-by-side panels, each a crop of the night sky from the Vera Rubin telescope. Each panel shows one of the seven galaxy candidates in the paper. Across the dark field sit many stars of our own Galaxy. They look like sharp points, some brighter, some fainter, and they are not the galaxies named in the title. Those stars are in the foreground. Each panel has a pale patch in the middle. The edges fade out. That patch is a rarefied dwarf galaxy: few stars over a wide area, so it does not read as a sharp disk or a spiral. It looks oval or almost round, dull, gray or gray-yellow. Six of them stay small in the frame. AD 7, the last one, takes more of the frame and looks fainter. It is a wide, dim blot and does not stand out from the background as clearly as the others. The color is stacked and false. It is there only to show objects that would otherwise stay almost invisible. Each panel has a scale bar at the bottom. One arcminute is about 4.7 kiloparsecs — roughly 15,000 light-years — if the galaxies are at the Virgo Cluster distance. North is up. East is to the left.

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Nereide @drnereide.bsky.social · 22/09/2026

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Nereide @drnereide.bsky.social · 11/10/2025

🧵 A nice circumhorizontal arc (informally known as a fire rainbow, which is a misnomer) over West Virginia captured by Christa Harbig! It is an optical phenomenon belonging to the family of ice halos, so it is neither fire nor a rainbow. ➡️ apod.nasa.gov/apod/ap21083... 🔭 🧪 #science 1/3

$The image shows a circumhorizon arc (or circumhorizontal arc), an optical phenomenon resembling a fiery rainbow. It forms in a clear sky with cirrus clouds made of flat, hexagonal ice crystals aligned horizontally. These crystals refract sunlight, creating a colorful arc parallel to the horizon. Vibrant colors shine brightly against the blue sky, captured near North Fork Mountain, West Virginia.$

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Nereide @drnereide.bsky.social · 21/09/2026

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Nereide @drnereide.bsky.social · 21/09/2025

🧵 WD 1647+375, a white dwarf just 260 ly away, is "snacking" on the remnants of a Pluto-like body from an alien Kuiper Belt. Using Hubble's ultraviolet spectroscopy, an international team has revealed the chemical composition of this cosmic object, ➡️ warwick.ac.uk/news/pressre... 🔭 🧪 #science

This image is an illustration showing the early stages of an icy body that is torn apart by a white dwarf's intense gravity, leaving glowing trails of gas and dust as its fragments spiral inward.

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Larry R. Nittler 🚀🎹🌖☄️ @larrynittler.bsky.social · 20/09/2026

And here are their orbits and where they both are today

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Nereide @drnereide.bsky.social · 20/09/2026

I agree — and I’m glad you said it out loud. Famous rooms teach the canon; a small gallery in the place you’re standing can still surprise you. Two #artworks by Nikos Alexiou (1960-2011): floor labyrinth + workbench of paper forms. Reed, string; lace-like grids about to collapse. #ArtSky #Art

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Steve Desch @deschscoveries.bsky.social · 20/09/2026

It’s me! I got the ball rolling a year ago. Tim McCoy was instrumental and Allison McGraw helped. We got two asteroids named, thanks to discoverer Bobby Bus: (14330) Tomlehrer and (14331) Alyankovic. Two of my musical heroes, as you can tell from the citations I wrote.

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Nereide @drnereide.bsky.social · 20/09/2026

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Nereide @drnereide.bsky.social · 17/09/2026

For the 1st time, an extrasolar planet has left a radio fingerprint of its own, distinct from its star’s. 🔭 That fingerprint also tells us how strong its magnetic field is.⚛️ The planet is called β Pictoris b.🧪 Illustration Credit: ESO/L. Calçada/N. Risinger (skysurvey.org) #planetsci #astronomy

Artist’s impression (not a photograph) of the young giant planet β Pictoris b. A large, banded gas world fills the foreground, lit in warm orange-reddish and brown, with a bright young star farther back against a starry sky.
Artwork from 2014, made for the first measurement of the planet’s spin, not for the radio detection.

Source: https://www.eso.org/public/images/eso1414a/

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Nereide @drnereide.bsky.social · 17/09/2026

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Nereide @drnereide.bsky.social · 16/09/2026

You've probably read that an OpenAI system has "solved" a #MillenniumProblem on the fluid equations. The headline is strong. Better to ask: which problem, under which assumptions, and what would still be open. 🧪⚛️ #mathsky #science #NavierStokes

Von Kármán vortex streets appear on the lee side of Peter I Island in this image acquired with the OLI (Operational Land Imager) on Landsat 8 on February 11, 2026.

NASA Earth Observatory/Michala Garrison

https://science.nasa.gov/earth/earth-observatory/a-sea-of-spinning-clouds/

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Steve Desch @deschscoveries.bsky.social · 17/09/2026

Very informative explanation if what math AI did and did not do.

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Nereide @drnereide.bsky.social · 16/09/2026

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Nereide @drnereide.bsky.social · 15/09/2026

This photo isn't the usual diamond ring. On 2 July 2019, from Cerro Tololo in Chile, during the total #eclipse the Sun stayed visible at two points at once. The rather uncommon effect looks like a "double diamond ring". 🔭🧪⚛️ Credit: CTIO/NOIRLab/NSF/AURA/D. Munizaga #astronomy #science

$Black disk of the Moon on a dark sky. On the upper limb, two close, very bright points of sunlight with diffraction spikes. Weak glow around the Moon. Some pink on the edge. Shot at Cerro Tololo during the 2 July 2019 total eclipse.$

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Nereide @drnereide.bsky.social · 15/09/2026

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Nereide @drnereide.bsky.social · 14/09/2026

14 September 2015 went down in #history. That is, in fact, the day the #LIGO researchers first detected a #gravitationalwave signal, formally named #GW150914. journals.aps.org/prl/abstract... #cosmology #histsci #blackholes 🔭 🧪 ⚛️

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Nereide @drnereide.bsky.social · 15/09/2026

The point is not to discover what is already known. It is to learn how to evaluate. AI educates when it takes over mechanical work and pushes the student toward a harder problem. It miseducates when it replaces the very work through which one learns to evaluate. #EduSky

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Nereide @drnereide.bsky.social · 14/09/2026

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Nereide @drnereide.bsky.social · 14/09/2026

Rafael Sorkin (1945–2026) combined theoretical depth with a rare intellectual curiosity. A pioneer of causal set theory, he pictured spacetime as a locally finite set of events in which causal order and number give rise to geometry. He leaves a profound absence. RIP. 🧪 🔭 ⚛️ #physics #histsci

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Nereide @drnereide.bsky.social · 14/09/2026

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ESO @eso.org · 14/09/2026

A starry night, but in another galaxy ✨ Fly over the Magellanic Clouds, two galaxies orbiting the #MilkyWay, and discover a new stellar landscape — completely different from the one we see in our sky here on Earth. 🔭 🧪

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Nereide @drnereide.bsky.social · 13/09/2026

You are admiring #Saturn together with three of its moons: Titan at the upper right; the shadow, seen as a black dot, of Rhea transiting; Tethys transiting within the shadow cast by the rings. Author: Gabriele D'Orazio -> www.instagram.com/p/C9iXP21MYFi/ 🧪🔭⚛️ #sciart #astrophotography

Color photograph of Saturn against a black background. The planet appears as a pale cream-and-beige sphere with faint horizontal atmospheric bands. Its thin, sharp rings run diagonally from lower left to upper right, showing a dark Cassini Division and casting a narrow dark shadow across Saturn’s disk. A small black circular spot on the planet’s face is the shadow of the moon Rhea in transit. Titan, Saturn’s largest moon, is visible as a small tan disk in the upper right, well separated from the planet. A tiny point of light, the moon Tethys, is transiting precisely inside the shadow cast by the rings on the left side of the image.

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Nereide @drnereide.bsky.social · 13/09/2026

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Nereide @drnereide.bsky.social · 12/09/2026

A Nobel as a shield for working women. "I would be particularly happy if the distinction awarded to me could [...] safeguard women's most precious right: to practise, on the same terms as men, the professions for which they are qualified." ― Irène Joliot-Curie, born #OTD in 1897. 🧪⚛️ #WomenInSTEM

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Nereide @drnereide.bsky.social · 12/09/2026

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Nereide @drnereide.bsky.social · 11/09/2026

It’s a useful warning beyond #mathematics as well: when the tool delivers the final result without going through the process that generates judgment, new questions, and transmission, intellectual work is hollowed out even if it still "works." 🧪🔭⚛️ #mathsky

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Nereide @drnereide.bsky.social · 11/09/2026

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