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drnereide.bsky.social
Nereide
@drnereide.bsky.social
5.2K followers 72 following 3.7K posts
Physicist interested in Astrophysics and Particle Physics| Research in Math and Science Edu| Math and Science Writer| Teacher and Teacher Trainer| WomenInSTEM

My science blog: https://www.tutto-scienze.org/

More about me: https://x.com/settings/bio
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drnereide.bsky.social
Nereide @drnereide.bsky.social · 2d
🧵
Here comes a jaw-dropping discovery: the most distant confirmed protocluster ever seen with X-rays! 🔭 ⚛️

Using #JWST & #Chandra together, astronomers spotted JADES-ID1—a massive structure in the making that’s forcing us to rethink how fast the cosmos grew up. 🧪

#cosmology #space #astronomy 1/10
#JWST infrared deep field: golden-white distant galaxies on black space. Central soft blue #Chandra glow marks hot gas around a tight group of young galaxies. Brightest one has big diffraction spikes. Possibly the earliest protocluster seen—only ~1 billion years post-Big Bang.
Reposted by Nereide
emily.space
If left unchecked, we are racing towards a world where searching for "struggling to breastfeed" makes baby formula more expensive for you in your local supermarket (that's one dystopian example anyway)
ronanfarrow.bsky.social Ronan Farrow @ronanfarrow.bsky.social · 4d
(1/11) If you live in NY, you’ve probably started seeing a new warning: “THIS PRICE WAS SET BY AN ALGORITHM USING YOUR PERSONAL DATA.” This mandatory disclosure went into effect late last year, and it’s the first attempt by a US state to grapple with a new generation of surveillance pricing.
February 16, 2026 at 10:44 AM
Reposted by Nereide
drnereide.bsky.social
🧵
Here comes a jaw-dropping discovery: the most distant confirmed protocluster ever seen with X-rays! 🔭 ⚛️

Using #JWST & #Chandra together, astronomers spotted JADES-ID1—a massive structure in the making that’s forcing us to rethink how fast the cosmos grew up. 🧪

#cosmology #space #astronomy 1/10
#JWST infrared deep field: golden-white distant galaxies on black space. Central soft blue #Chandra glow marks hot gas around a tight group of young galaxies. Brightest one has big diffraction spikes. Possibly the earliest protocluster seen—only ~1 billion years post-Big Bang.
February 14, 2026 at 6:18 PM
drnereide.bsky.social
🧵
Here comes a jaw-dropping discovery: the most distant confirmed protocluster ever seen with X-rays! 🔭 ⚛️

Using #JWST & #Chandra together, astronomers spotted JADES-ID1—a massive structure in the making that’s forcing us to rethink how fast the cosmos grew up. 🧪

#cosmology #space #astronomy 1/10
#JWST infrared deep field: golden-white distant galaxies on black space. Central soft blue #Chandra glow marks hot gas around a tight group of young galaxies. Brightest one has big diffraction spikes. Possibly the earliest protocluster seen—only ~1 billion years post-Big Bang.
February 14, 2026 at 6:18 PM
Reposted by Nereide
drnereide.bsky.social
🧵
Are we at a breakthrough in VUV laser tech?

It seems so: nuclear clocks could be way more accurate than what we have now, leading to substantial advantages.

Read the following. 1/3

⚛️ 🧪 #physics #science #laser #technology #clock
physicsmagazine.bsky.social Physics Magazine @physicsmagazine.bsky.social · 4d
The nuclear transitions that underlie nuclear clocks are difficult to drive controllably using existing laser technology. Now researchers have tested a new intense single-frequency ultraviolet laser that can achieve such driving for thorium-229 nuclei.
A Laser Built for Nuclear Timekeeping
Researchers have designed and demonstrated an ultraviolet laser that removes a major bottleneck in the development of a nuclear clock.
physics.aps.org
February 13, 2026 at 3:42 PM
Reposted by Nereide
drnereide.bsky.social
🧵
This fantastic image shows NGC 3576, an emission nebula in the Sagittarius arm of our galaxy, dubbed 'The Statue of Liberty Nebula' because of the peculiar shape of the nebulous object in the center.

➡️ apod.nasa.gov/apod/ap16092...

🔭 🧪 ⚛️ #astronomy #space #universe #galactic

1/4
It's a big, colorful shot of the Statue of Liberty Nebula (NGC 3576). Right in the middle, you can actually see why they call it that – there's this bright pinkish-red patch with a shape that really does look like the statue raising her torch. The whole thing glows in warm reds and pinks from hydrogen gas. Scattered across it are several small, perfectly dark blobs – those are dust globules. A few super-bright, almost glaring blue-white stars pop out against the nebula, and there are some faint wispy loops of gas curving off to the sides. About 100 light-years wide.
February 12, 2026 at 10:48 PM
drnereide.bsky.social
🧵
Are we at a breakthrough in VUV laser tech?

It seems so: nuclear clocks could be way more accurate than what we have now, leading to substantial advantages.

Read the following. 1/3

⚛️ 🧪 #physics #science #laser #technology #clock
physicsmagazine.bsky.social Physics Magazine @physicsmagazine.bsky.social · 4d
The nuclear transitions that underlie nuclear clocks are difficult to drive controllably using existing laser technology. Now researchers have tested a new intense single-frequency ultraviolet laser that can achieve such driving for thorium-229 nuclei.
A Laser Built for Nuclear Timekeeping
Researchers have designed and demonstrated an ultraviolet laser that removes a major bottleneck in the development of a nuclear clock.
physics.aps.org
February 13, 2026 at 3:42 PM
drnereide.bsky.social
🧵
This fantastic image shows NGC 3576, an emission nebula in the Sagittarius arm of our galaxy, dubbed 'The Statue of Liberty Nebula' because of the peculiar shape of the nebulous object in the center.

➡️ apod.nasa.gov/apod/ap16092...

🔭 🧪 ⚛️ #astronomy #space #universe #galactic

1/4
It's a big, colorful shot of the Statue of Liberty Nebula (NGC 3576). Right in the middle, you can actually see why they call it that – there's this bright pinkish-red patch with a shape that really does look like the statue raising her torch. The whole thing glows in warm reds and pinks from hydrogen gas. Scattered across it are several small, perfectly dark blobs – those are dust globules. A few super-bright, almost glaring blue-white stars pop out against the nebula, and there are some faint wispy loops of gas curving off to the sides. About 100 light-years wide.
February 12, 2026 at 10:48 PM
Reposted by Nereide
drnereide.bsky.social
1/2 🧪 #histsci #DarwinDay #Darwin

12 February 1809: Charles Darwin was born.

“Happiness is never better exhibited than by young animals, such as puppies, kittens, lambs, & c., when playing together, like our own children.”

(From 'The Descent of Man', 1871)
The title page of the 1859 edition of 'The Origin of Species'. Public Domain "As HMS Beagle surveyed the coasts of South America, Darwin theorised about geology and the extinction of giant mammals; watercolour by the ship's artist Conrad Martens, who replaced Augustus Earle, in Tierra del Fuego." Public Domain The image shows the round-the-world voyage of the Beagle, 1831–1836 CC BY-SA 4.0 Darwin in 1842 with his eldest son, William Erasmus Darwin Public Domain
February 12, 2025 at 9:20 PM
Reposted by Nereide
drnereide.bsky.social
🧵1/8
Reposting this thread on #KatherineJohnson —perfect timing for the International Day of Women & Girls in Science on #Februar11, and right in the heart of #BlackHistoryMonth.

Her story just blows me away every time, showing how one person's grit ...

#WomenInSTEM #HistSci #WomenInScience 🧪 🔭 ⚛️
drnereide.bsky.social Nereide @drnereide.bsky.social · Feb 11
🧪 🔭🧵 #histsci
#February11 is International Day of Women & Girls in Science. So I would like to highlight Katherine Johnson, #NASA mathematician and computer scientist.

A biography➡️ nasa.gov/centers-and-...

She was a trailblazer in the quest for racial equality and, as a champion of STEM education,
The image shows Katherine G. Johnson smiling working at the Spacecraft Controls Branch of NASA in 1966.
February 11, 2026 at 2:18 PM
Reposted by Nereide
92sciencemusic.bsky.social
🧪 The physics behind extreme weather: through the Clausius–Clapeyron law, warmer air holds more water vapor (~7% per °C), intensifying rainfall and fueling stronger storms. A simple equation with powerful climate implications. 🌡️🌪️ Read my blog post here: scienzaemusica.blogspot.com/2026/02/la-f...
LA FISICA DIETRO CERTI EVENTI ESTREMI: L'EQUAZIONE DI CLAUSIUS-CLAPEYRON
Negli ultimi anni sentiamo parlare sempre più spesso di “eventi estremi”: alluvioni improvvise, uragani intensi, ecc. Immagine tratta da...
scienzaemusica.blogspot.com
February 11, 2026 at 8:32 PM
Reposted by Nereide
drnereide.bsky.social
🧵1/9
Fascinating stuff— #JWST has spotted the oldest supernova ever confirmed.

It exploded when the #universe was just ~730 Myr old (~5% of its current age).

The whole thing began with a very bright gamma-ray burst, GRB 250314A.🔭 🧪

➡️ science.nasa.gov/missions/web...

#space #astronomy #science
James Webb Space Telescope NIRCam view of deep space showing hundreds of distant galaxies in different shapes and colors against black. A white zoom box in the center-right highlights a tiny faint red dot labeled GRB 250314A—the gamma-ray burst source and its very distant host galaxy.
February 10, 2026 at 7:09 PM
drnereide.bsky.social
🧵1/8
Reposting this thread on #KatherineJohnson —perfect timing for the International Day of Women & Girls in Science on #Februar11, and right in the heart of #BlackHistoryMonth.

Her story just blows me away every time, showing how one person's grit ...

#WomenInSTEM #HistSci #WomenInScience 🧪 🔭 ⚛️
drnereide.bsky.social Nereide @drnereide.bsky.social · Feb 11
🧪 🔭🧵 #histsci
#February11 is International Day of Women & Girls in Science. So I would like to highlight Katherine Johnson, #NASA mathematician and computer scientist.

A biography➡️ nasa.gov/centers-and-...

She was a trailblazer in the quest for racial equality and, as a champion of STEM education,
The image shows Katherine G. Johnson smiling working at the Spacecraft Controls Branch of NASA in 1966.
February 11, 2026 at 2:18 PM
drnereide.bsky.social
🧵1/9
Fascinating stuff— #JWST has spotted the oldest supernova ever confirmed.

It exploded when the #universe was just ~730 Myr old (~5% of its current age).

The whole thing began with a very bright gamma-ray burst, GRB 250314A.🔭 🧪

➡️ science.nasa.gov/missions/web...

#space #astronomy #science
James Webb Space Telescope NIRCam view of deep space showing hundreds of distant galaxies in different shapes and colors against black. A white zoom box in the center-right highlights a tiny faint red dot labeled GRB 250314A—the gamma-ray burst source and its very distant host galaxy.
February 10, 2026 at 7:09 PM
Reposted by Nereide
drnereide.bsky.social
🧵1/6
This splendid image by Brad Goldpaint pays homage to the sky and ground, featuring some marvels of our planet and the majesty of our galaxy.🔭 🧪 ⚛️

The trees pictured here are incredibly ancient,...

➡️ apod.nasa.gov/apod/ap16061...

#astrophotography #astronomy #sciart #space #universe
Stunning shot of ancient bristlecone pines in eastern California’s Ancient Bristlecone Pine Forest, under a sky bursting with the Milky Way. Saturn on the left and Mars look almost stuck to the branches, with the galaxy’s bright core lighting everything up. It gives you this crazy feeling of timelessness—super old stuff on Earth next to things billions of years older out there.
February 9, 2026 at 7:37 PM
Reposted by Nereide
emily.space
*raises hand* this is me! I will probably never move back to the UK given how awful the research funding situation is.

Also, prohibitive immigration rules would make it difficult and expensive for my (EU) partner to move there, adding another financial disincentive on ever returning.
February 10, 2026 at 8:18 AM
drnereide.bsky.social
🧵1/6
This splendid image by Brad Goldpaint pays homage to the sky and ground, featuring some marvels of our planet and the majesty of our galaxy.🔭 🧪 ⚛️

The trees pictured here are incredibly ancient,...

➡️ apod.nasa.gov/apod/ap16061...

#astrophotography #astronomy #sciart #space #universe
Stunning shot of ancient bristlecone pines in eastern California’s Ancient Bristlecone Pine Forest, under a sky bursting with the Milky Way. Saturn on the left and Mars look almost stuck to the branches, with the galaxy’s bright core lighting everything up. It gives you this crazy feeling of timelessness—super old stuff on Earth next to things billions of years older out there.
February 9, 2026 at 7:37 PM
Reposted by Nereide
drnereide.bsky.social
🧵1/19
Picture a 25-year-old Italian guy who, in 1926, changed #physics ⚛️forever—paving the way for computers, smartphones, & understanding #stars. 🔭

This is #EnricoFermi & his famous “statistics.”🧪

Let’s walk through the story from Florence to “fermions,” 100 yrs later.

➡️ arxiv.org/abs/2602.04484
Portrait of a young Enrico Fermi, from the personal collection of Emilio Segrè (Morgue 1960-33). Courtesy of Lawrence Berkeley National Laboratory / AIP Emilio Segrè Visual Archives. Non-commercial use.
February 8, 2026 at 4:16 PM
Reposted by Nereide
deschscoveries.bsky.social
Molte grazie! I loved learning more about Fermi, one of the physicists I admire most.
February 8, 2026 at 9:54 PM
drnereide.bsky.social
🧵1/19
Picture a 25-year-old Italian guy who, in 1926, changed #physics ⚛️forever—paving the way for computers, smartphones, & understanding #stars. 🔭

This is #EnricoFermi & his famous “statistics.”🧪

Let’s walk through the story from Florence to “fermions,” 100 yrs later.

➡️ arxiv.org/abs/2602.04484
Portrait of a young Enrico Fermi, from the personal collection of Emilio Segrè (Morgue 1960-33). Courtesy of Lawrence Berkeley National Laboratory / AIP Emilio Segrè Visual Archives. Non-commercial use.
February 8, 2026 at 4:16 PM
Reposted by Nereide
drnereide.bsky.social
🧵1/4
How intriguing is this view of Jupiter's rocky moon Io, the most volcanically active body in the Solar System? 🔭 🧪⚛️

This is a gift coming from Juno spacecraft that made a 2nd close flyby...

Pic by NASA/SwRI/MSSS

Mission Phase: PERIJOVE 58

➡️ missionjuno.swri.edu

#space #astronomy #science
Take a good look at this close-up of Io — the terminator slices it straight down the middle. Right side catches full sunlight and lights up in these vivid yellow-oranges. Left? Mostly blacked out, but you can still make out stuff because Jupiter's glow is bouncing off it (that's the Jupitershine doing its thing). The ground's a mess: rough everywhere, spotted with these huge volcanic sinks called paterae, plus darker smudges — sulfur gunk or silicates most likely — and patches that glow a bit brighter. Those could be fresh lava spills or just sulfur dioxide frost hanging around.
February 7, 2026 at 8:26 AM
drnereide.bsky.social
This quote effectively summarizes the spirit of one of the greatest scientific minds of the 20th century:

"If I die tomorrow or in a year, it is the same — it is the message you leave behind you that counts, and the young scientists who carry on your work."

— Rita Levi-Montalcini 🧪

#WomenInSTEM
princess-vimentin.bsky.social Princess Vimentin PhD | Cancer Biologist @princess-vimentin.bsky.social · 8d
Rita Levi-Montalcini was raised by a strict father who disapproved of women in higher ed.

She convinced him to let her study medicine.

She went on to co-discover the Nerve Growth Factor. She received the Nobel Prize in 1986.

She was another immigrant that gifted the US with pioneering work.
🧪
"I realised that I could not possibly adjust to a feminine role as conceived by my father" RITA LEVI-MONTALCINI Nobel Prize in Physiology or Medicine 1986 Born in Turin, Italy, in 1909, Rita Levi-Montalcini was raised by an authoritarian father who strongly disapproved of women's education beyond finishing school. His attitude was both a hindrance and a spur to Levi-Montalcini's ambitions. She convinced him to let her study medicine. Woefully undereducated to that point, she crammed years' worth of Greek, Latin and mathematics into eight months, and then entered medical school at the University of Turin. Levi-Montalcini went on to become a neuroembryologist who co-discovered nerve growth factor, a prominent figure in Italian politics, and an active researcher and mentor until her death at the age of 103. In 1986 she was awarded the medicine prize.
February 8, 2026 at 11:52 AM
Reposted by Nereide
princess-vimentin.bsky.social
Rita Levi-Montalcini was raised by a strict father who disapproved of women in higher ed.

She convinced him to let her study medicine.

She went on to co-discover the Nerve Growth Factor. She received the Nobel Prize in 1986.

She was another immigrant that gifted the US with pioneering work.
🧪
"I realised that I could not possibly adjust to a feminine role as conceived by my father" RITA LEVI-MONTALCINI Nobel Prize in Physiology or Medicine 1986 Born in Turin, Italy, in 1909, Rita Levi-Montalcini was raised by an authoritarian father who strongly disapproved of women's education beyond finishing school. His attitude was both a hindrance and a spur to Levi-Montalcini's ambitions. She convinced him to let her study medicine. Woefully undereducated to that point, she crammed years' worth of Greek, Latin and mathematics into eight months, and then entered medical school at the University of Turin. Levi-Montalcini went on to become a neuroembryologist who co-discovered nerve growth factor, a prominent figure in Italian politics, and an active researcher and mentor until her death at the age of 103. In 1986 she was awarded the medicine prize.
February 8, 2026 at 2:05 AM
drnereide.bsky.social
🧵1/4
How intriguing is this view of Jupiter's rocky moon Io, the most volcanically active body in the Solar System? 🔭 🧪⚛️

This is a gift coming from Juno spacecraft that made a 2nd close flyby...

Pic by NASA/SwRI/MSSS

Mission Phase: PERIJOVE 58

➡️ missionjuno.swri.edu

#space #astronomy #science
Take a good look at this close-up of Io — the terminator slices it straight down the middle. Right side catches full sunlight and lights up in these vivid yellow-oranges. Left? Mostly blacked out, but you can still make out stuff because Jupiter's glow is bouncing off it (that's the Jupitershine doing its thing). The ground's a mess: rough everywhere, spotted with these huge volcanic sinks called paterae, plus darker smudges — sulfur gunk or silicates most likely — and patches that glow a bit brighter. Those could be fresh lava spills or just sulfur dioxide frost hanging around.
February 7, 2026 at 8:26 AM
Reposted by Nereide
drnereide.bsky.social
🧵
What is that tiny white dot, just above and to the right of the pic center?

It's about the planet Venus, imaged by the wide-angle camera from the Cassini spacecraft on 10 Nov 2012. 🔭 🧪

➡️ photojournal.jpl.nasa.gov/catalog/PIA1...

Image by NASA/JPL-Caltech/SSI

#planetsci #histsci #science

1/4
Up close, Cassini caught Saturn’s rings glowing gold from behind, the Sun lighting them in that eerie backlight with sharp dark shadows slicing through. Right near the top-center sits this little white spark—Venus, not some distant star. Shot November 10, 2012. From Earth Venus blazes like the brightest “star” in the sky, yet out there it’s just a faint dot. Saturn’s average distance—1.4 billion km—really hits you then. We feel so small.
February 5, 2026 at 6:02 PM
Reposted by Nereide
histoftech.bsky.social
No joke: I got angry hate mail today for writing an obituary of a Black woman scientist—because the person felt she did didn’t deserve the recognition.

Which just makes me want to share it again: www.nature.com/articles/d41...
Gladys Mae West obituary: mathematician who pioneered GPS technology
She made key contributions to US cold-war science despite facing huge barriers as a Black woman.
www.nature.com
February 6, 2026 at 9:09 AM