Leonardo Petrillo
@92sciencemusic.bsky.social
Physicist (MSc in theoretical physics); scientific blogger (https://scienzaemusica.blogspot.com/); appreciator of music, especially classical-jazz. Expert and theorycrafter on some kinds of videogames, including Diablo, Hearthstone
Pinned
🧪⚛️ Update: yesterday the discussion went well...110 cum laude + direct compliments from the counter-rapporteur for the quality of the thesis! 🥳
Here you can find the complete slides of the presentation: docs.google.com/presentation...
Here you can find the complete slides of the presentation: docs.google.com/presentation...
Reposted by Leonardo Petrillo
Emblematic anecdote!
Pauli, an undisputed genius, here stumbles in one of his rare failures of intuition – and what a failure!
Wu’s experiment gave him a memorable lesson: even the “scourge of God” of physics is not infallible.
By the way, Pauli was a ruthless...
⚛️ 🧪 #histsci
1/2
Pauli, an undisputed genius, here stumbles in one of his rare failures of intuition – and what a failure!
Wu’s experiment gave him a memorable lesson: even the “scourge of God” of physics is not infallible.
By the way, Pauli was a ruthless...
⚛️ 🧪 #histsci
1/2
When Lee and Yang suggested there's a fundamental difference between left and right, Pauli wrote:
"Ich glaube aber nicht, daß der Herrgott ein schwacher Linkshänder ist."
(I do not believe that the Lord is a weak left-hander.)
2 days later, Wu's experiment showed that Lee and Yang were correct!
"Ich glaube aber nicht, daß der Herrgott ein schwacher Linkshänder ist."
(I do not believe that the Lord is a weak left-hander.)
2 days later, Wu's experiment showed that Lee and Yang were correct!
December 18, 2025 at 2:51 PM
Emblematic anecdote!
Pauli, an undisputed genius, here stumbles in one of his rare failures of intuition – and what a failure!
Wu’s experiment gave him a memorable lesson: even the “scourge of God” of physics is not infallible.
By the way, Pauli was a ruthless...
⚛️ 🧪 #histsci
1/2
Pauli, an undisputed genius, here stumbles in one of his rare failures of intuition – and what a failure!
Wu’s experiment gave him a memorable lesson: even the “scourge of God” of physics is not infallible.
By the way, Pauli was a ruthless...
⚛️ 🧪 #histsci
1/2
Reposted by Leonardo Petrillo
🧵
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
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
December 16, 2025 at 3:06 PM
🧵
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
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
Reposted by Leonardo Petrillo
🧵
This aurora and SAR arc (according to the author Graeme Whipps), taken on Dec. 1, 2023 at Chapel of Garioch (Aberdeenshire, Scotland), give us a view of rare beauty.
The SAR arcs, or Stable Auroral Red arcs, were discovered only in 1956.🔭
spaceweathergallery2.com/indiv_upload...
🧪 #science
1/4
This aurora and SAR arc (according to the author Graeme Whipps), taken on Dec. 1, 2023 at Chapel of Garioch (Aberdeenshire, Scotland), give us a view of rare beauty.
The SAR arcs, or Stable Auroral Red arcs, were discovered only in 1956.🔭
spaceweathergallery2.com/indiv_upload...
🧪 #science
1/4
December 13, 2025 at 7:51 PM
🧵
This aurora and SAR arc (according to the author Graeme Whipps), taken on Dec. 1, 2023 at Chapel of Garioch (Aberdeenshire, Scotland), give us a view of rare beauty.
The SAR arcs, or Stable Auroral Red arcs, were discovered only in 1956.🔭
spaceweathergallery2.com/indiv_upload...
🧪 #science
1/4
This aurora and SAR arc (according to the author Graeme Whipps), taken on Dec. 1, 2023 at Chapel of Garioch (Aberdeenshire, Scotland), give us a view of rare beauty.
The SAR arcs, or Stable Auroral Red arcs, were discovered only in 1956.🔭
spaceweathergallery2.com/indiv_upload...
🧪 #science
1/4
Reposted by Leonardo Petrillo
🧵
Here is Messier 106 (or NGC 4258), a true cosmic marvel in the constellation Canes Venatici.
Image Credit: NASA, ESO , NAOJ, Giovanni Paglioli; Assembling and Processing: R. Colombari and R. Gendler
➡️ apod.nasa.gov/apod/ap19031...
🔭 🧪 #science #universe #extragalactic #astronomy
1/5
Here is Messier 106 (or NGC 4258), a true cosmic marvel in the constellation Canes Venatici.
Image Credit: NASA, ESO , NAOJ, Giovanni Paglioli; Assembling and Processing: R. Colombari and R. Gendler
➡️ apod.nasa.gov/apod/ap19031...
🔭 🧪 #science #universe #extragalactic #astronomy
1/5
December 12, 2025 at 5:01 PM
🧵
Here is Messier 106 (or NGC 4258), a true cosmic marvel in the constellation Canes Venatici.
Image Credit: NASA, ESO , NAOJ, Giovanni Paglioli; Assembling and Processing: R. Colombari and R. Gendler
➡️ apod.nasa.gov/apod/ap19031...
🔭 🧪 #science #universe #extragalactic #astronomy
1/5
Here is Messier 106 (or NGC 4258), a true cosmic marvel in the constellation Canes Venatici.
Image Credit: NASA, ESO , NAOJ, Giovanni Paglioli; Assembling and Processing: R. Colombari and R. Gendler
➡️ apod.nasa.gov/apod/ap19031...
🔭 🧪 #science #universe #extragalactic #astronomy
1/5
Reposted by Leonardo Petrillo
🧵
Here's Ellen Harding Baker's "Solar System" quilt.🧪
This is the story.🔭
Back in 1876, an Iowa mom with 7 kids, E. H. Baker, decided that cooking & raising children wasn’t enough for her.
She started working on a wool quilt showing the solar system.
americanhistory.si.edu/collections/...
1/7
Here's Ellen Harding Baker's "Solar System" quilt.🧪
This is the story.🔭
Back in 1876, an Iowa mom with 7 kids, E. H. Baker, decided that cooking & raising children wasn’t enough for her.
She started working on a wool quilt showing the solar system.
americanhistory.si.edu/collections/...
1/7
December 10, 2025 at 11:21 PM
🧵
Here's Ellen Harding Baker's "Solar System" quilt.🧪
This is the story.🔭
Back in 1876, an Iowa mom with 7 kids, E. H. Baker, decided that cooking & raising children wasn’t enough for her.
She started working on a wool quilt showing the solar system.
americanhistory.si.edu/collections/...
1/7
Here's Ellen Harding Baker's "Solar System" quilt.🧪
This is the story.🔭
Back in 1876, an Iowa mom with 7 kids, E. H. Baker, decided that cooking & raising children wasn’t enough for her.
She started working on a wool quilt showing the solar system.
americanhistory.si.edu/collections/...
1/7
Reposted by Leonardo Petrillo
Mind-blowing new paper just out! 🧪
A research team used #Gaia to create the most detailed 3D census to date of OB associations within ~1000 ly from the Sun.
Result? 🔭
57 groups of massive stars — twice as many as we knew before — that were born together and are now slowly drifting apart.
1/4
A research team used #Gaia to create the most detailed 3D census to date of OB associations within ~1000 ly from the Sun.
Result? 🔭
57 groups of massive stars — twice as many as we knew before — that were born together and are now slowly drifting apart.
1/4
A new census of OB associations with Gaia!
In this study, we took advantage of my OB stars map to find new OB associations within 1 kpc. The goal was to create a useful reference catalogue for this era, and to trace the star formation and structure of the local Milky Way.
#stellarastro #galactic
In this study, we took advantage of my OB stars map to find new OB associations within 1 kpc. The goal was to create a useful reference catalogue for this era, and to trace the star formation and structure of the local Milky Way.
#stellarastro #galactic
December 9, 2025 at 9:47 AM
Mind-blowing new paper just out! 🧪
A research team used #Gaia to create the most detailed 3D census to date of OB associations within ~1000 ly from the Sun.
Result? 🔭
57 groups of massive stars — twice as many as we knew before — that were born together and are now slowly drifting apart.
1/4
A research team used #Gaia to create the most detailed 3D census to date of OB associations within ~1000 ly from the Sun.
Result? 🔭
57 groups of massive stars — twice as many as we knew before — that were born together and are now slowly drifting apart.
1/4
Reposted by Leonardo Petrillo
Just when you thought you had 'em figured out.
December 8, 2025 at 2:44 PM
Just when you thought you had 'em figured out.
Reposted by Leonardo Petrillo
🧵
Admire this fascinating JWST picture.
The cluster MACSJ0159.2-0849, here featured, is a monster made of hundreds of galaxies, ~4.5 billion light-years away.
But the real magic? This galaxy cluster works as a gigantic, natural magnifying glass.
🔭 🧪 #extragalactic #cosmology
1/7
Admire this fascinating JWST picture.
The cluster MACSJ0159.2-0849, here featured, is a monster made of hundreds of galaxies, ~4.5 billion light-years away.
But the real magic? This galaxy cluster works as a gigantic, natural magnifying glass.
🔭 🧪 #extragalactic #cosmology
1/7
James #Webb Space Telescope #JWST
Vast Exploration for Nascent, Unexplored Sources
High-redshift Galaxies and the Distant Universe
TARG: #MACSJ0159-0849
2025-12-01
PI: Fujimoto, Seiji
NIRCAM 444 410 300 277 210 200 150 115 090
yuval-harpaz.github.io/astro/jwst_l...
NASA/ESA/CSA/STScI/j. Roger
Vast Exploration for Nascent, Unexplored Sources
High-redshift Galaxies and the Distant Universe
TARG: #MACSJ0159-0849
2025-12-01
PI: Fujimoto, Seiji
NIRCAM 444 410 300 277 210 200 150 115 090
yuval-harpaz.github.io/astro/jwst_l...
NASA/ESA/CSA/STScI/j. Roger
December 8, 2025 at 5:01 PM
🧵
Admire this fascinating JWST picture.
The cluster MACSJ0159.2-0849, here featured, is a monster made of hundreds of galaxies, ~4.5 billion light-years away.
But the real magic? This galaxy cluster works as a gigantic, natural magnifying glass.
🔭 🧪 #extragalactic #cosmology
1/7
Admire this fascinating JWST picture.
The cluster MACSJ0159.2-0849, here featured, is a monster made of hundreds of galaxies, ~4.5 billion light-years away.
But the real magic? This galaxy cluster works as a gigantic, natural magnifying glass.
🔭 🧪 #extragalactic #cosmology
1/7
Reposted by Leonardo Petrillo
Admire this fantastic pic, dominated by the diffuse blue light of the M78 nebula.
Igor Chekalin, by processing the raw data for the original image uncovered in ESO's archives, claimed first prize in the ESO's Hidden Treasures 2010 contest with his final work.
➡️ www.eso.org/public/news/...
🔭 🧪 1/9
Igor Chekalin, by processing the raw data for the original image uncovered in ESO's archives, claimed first prize in the ESO's Hidden Treasures 2010 contest with his final work.
➡️ www.eso.org/public/news/...
🔭 🧪 1/9
December 7, 2025 at 3:30 PM
Admire this fantastic pic, dominated by the diffuse blue light of the M78 nebula.
Igor Chekalin, by processing the raw data for the original image uncovered in ESO's archives, claimed first prize in the ESO's Hidden Treasures 2010 contest with his final work.
➡️ www.eso.org/public/news/...
🔭 🧪 1/9
Igor Chekalin, by processing the raw data for the original image uncovered in ESO's archives, claimed first prize in the ESO's Hidden Treasures 2010 contest with his final work.
➡️ www.eso.org/public/news/...
🔭 🧪 1/9
Reposted by Leonardo Petrillo
Another stunning Martian sunset!
(I reiterate what I wrote in another post a few days ago.)
Fine dust strongly scatters red light away in all directions (Mie scattering).
At sunset, when the Sun is low, its light travels hundreds of km through the dusty Martian atmosphere— almost...
🔭 🧪
1/2
(I reiterate what I wrote in another post a few days ago.)
Fine dust strongly scatters red light away in all directions (Mie scattering).
At sunset, when the Sun is low, its light travels hundreds of km through the dusty Martian atmosphere— almost...
🔭 🧪
1/2
Sun setting behind Gale crater wall - sol 956 - From Thomas Appéré (thomasappere.bsky.social) - https://flic.kr/p/snMQzS
December 5, 2025 at 4:05 PM
Another stunning Martian sunset!
(I reiterate what I wrote in another post a few days ago.)
Fine dust strongly scatters red light away in all directions (Mie scattering).
At sunset, when the Sun is low, its light travels hundreds of km through the dusty Martian atmosphere— almost...
🔭 🧪
1/2
(I reiterate what I wrote in another post a few days ago.)
Fine dust strongly scatters red light away in all directions (Mie scattering).
At sunset, when the Sun is low, its light travels hundreds of km through the dusty Martian atmosphere— almost...
🔭 🧪
1/2
Reposted by Leonardo Petrillo
🧵
The #JWST has recently given us one of the most beautiful images of late years: the stellar system Apep, a trio of massive stars surrounded by four perfect dust spirals that look almost drawn by hand.
➡️ science.nasa.gov/missions/web...
🔭 🧪 #science #stellarastro #astro
1/9
The #JWST has recently given us one of the most beautiful images of late years: the stellar system Apep, a trio of massive stars surrounded by four perfect dust spirals that look almost drawn by hand.
➡️ science.nasa.gov/missions/web...
🔭 🧪 #science #stellarastro #astro
1/9
December 5, 2025 at 12:25 AM
🧵
The #JWST has recently given us one of the most beautiful images of late years: the stellar system Apep, a trio of massive stars surrounded by four perfect dust spirals that look almost drawn by hand.
➡️ science.nasa.gov/missions/web...
🔭 🧪 #science #stellarastro #astro
1/9
The #JWST has recently given us one of the most beautiful images of late years: the stellar system Apep, a trio of massive stars surrounded by four perfect dust spirals that look almost drawn by hand.
➡️ science.nasa.gov/missions/web...
🔭 🧪 #science #stellarastro #astro
1/9
Reposted by Leonardo Petrillo
Lie groups and Noether's theorem are the tools that let 20th-century physicists wield *symmetry* as a powerful tool to study crystals, molecules, atoms, and elementary particles.
(1/n)
(1/n)
December 5, 2025 at 3:28 PM
Lie groups and Noether's theorem are the tools that let 20th-century physicists wield *symmetry* as a powerful tool to study crystals, molecules, atoms, and elementary particles.
(1/n)
(1/n)
Reposted by Leonardo Petrillo
Look at this galaxy going absolutely feral!
NGC 1792 is popping out stars like 10× faster than ours?
Apparently its neighbor NGC 1808 keeps yanking on it.
The result?
Fireworks of baby blue stars and glowing red clouds.
Space is really wild.
🔭 🧪 #extragalactic #science #Hubble
NGC 1792 is popping out stars like 10× faster than ours?
Apparently its neighbor NGC 1808 keeps yanking on it.
The result?
Fireworks of baby blue stars and glowing red clouds.
Space is really wild.
🔭 🧪 #extragalactic #science #Hubble
📷 This NASA/ESA #Hubble Space Telescope image shows a stormy spiral galaxy ⛈️
NGC 1792 is a starburst galaxy with spiral arms rich in star-forming regions. 🧪🔭
Read more 🔗 esahubble.org/images/potw2...
@science.esa.int @stsci.edu
NGC 1792 is a starburst galaxy with spiral arms rich in star-forming regions. 🧪🔭
Read more 🔗 esahubble.org/images/potw2...
@science.esa.int @stsci.edu
December 1, 2025 at 7:43 PM
Look at this galaxy going absolutely feral!
NGC 1792 is popping out stars like 10× faster than ours?
Apparently its neighbor NGC 1808 keeps yanking on it.
The result?
Fireworks of baby blue stars and glowing red clouds.
Space is really wild.
🔭 🧪 #extragalactic #science #Hubble
NGC 1792 is popping out stars like 10× faster than ours?
Apparently its neighbor NGC 1808 keeps yanking on it.
The result?
Fireworks of baby blue stars and glowing red clouds.
Space is really wild.
🔭 🧪 #extragalactic #science #Hubble
Reposted by Leonardo Petrillo
🧵
Under a dark sky, the Milky Way looks like a bright band interrupted by black rivers.
Those rivers are not empty space; they are curtains of tiny dust grains that swallow nearly all the starlight trying to reach us.
➡️ apod.nasa.gov/apod/ap25111...
🔭 🧪 #galactic #science #MilkyWay
1/6
Under a dark sky, the Milky Way looks like a bright band interrupted by black rivers.
Those rivers are not empty space; they are curtains of tiny dust grains that swallow nearly all the starlight trying to reach us.
➡️ apod.nasa.gov/apod/ap25111...
🔭 🧪 #galactic #science #MilkyWay
1/6
December 2, 2025 at 6:37 PM
🧵
Under a dark sky, the Milky Way looks like a bright band interrupted by black rivers.
Those rivers are not empty space; they are curtains of tiny dust grains that swallow nearly all the starlight trying to reach us.
➡️ apod.nasa.gov/apod/ap25111...
🔭 🧪 #galactic #science #MilkyWay
1/6
Under a dark sky, the Milky Way looks like a bright band interrupted by black rivers.
Those rivers are not empty space; they are curtains of tiny dust grains that swallow nearly all the starlight trying to reach us.
➡️ apod.nasa.gov/apod/ap25111...
🔭 🧪 #galactic #science #MilkyWay
1/6
Reposted by Leonardo Petrillo
🧵
This colorful composite image features NGC 6357, a diffuse nebula located some 5,500 light years away in the constellation Scorpius.
➡️ www.nasa.gov/image-articl...
Image credit: X-ray: NASA/CXC/PSU/L. Townsley et al; Optical: UKIRT; Infrared: NASA/JPL-Caltech
🔭 🧪 #science
1/5
This colorful composite image features NGC 6357, a diffuse nebula located some 5,500 light years away in the constellation Scorpius.
➡️ www.nasa.gov/image-articl...
Image credit: X-ray: NASA/CXC/PSU/L. Townsley et al; Optical: UKIRT; Infrared: NASA/JPL-Caltech
🔭 🧪 #science
1/5
December 1, 2025 at 12:27 AM
🧵
This colorful composite image features NGC 6357, a diffuse nebula located some 5,500 light years away in the constellation Scorpius.
➡️ www.nasa.gov/image-articl...
Image credit: X-ray: NASA/CXC/PSU/L. Townsley et al; Optical: UKIRT; Infrared: NASA/JPL-Caltech
🔭 🧪 #science
1/5
This colorful composite image features NGC 6357, a diffuse nebula located some 5,500 light years away in the constellation Scorpius.
➡️ www.nasa.gov/image-articl...
Image credit: X-ray: NASA/CXC/PSU/L. Townsley et al; Optical: UKIRT; Infrared: NASA/JPL-Caltech
🔭 🧪 #science
1/5
Reposted by Leonardo Petrillo
Exceptional!
The faint blur you see in this NIRCam image refers to GS-NDG-9422, a "strange" galaxy identified with the JWST and announced in 2024.
➡️ science.nasa.gov/missions/web...
Credits: NASA, ESA, CSA, STScI, Alex Cameron (Oxford)
🔭 🧪 #science #extragalactic #cosmology #JWST #Webb
1/5
The faint blur you see in this NIRCam image refers to GS-NDG-9422, a "strange" galaxy identified with the JWST and announced in 2024.
➡️ science.nasa.gov/missions/web...
Credits: NASA, ESA, CSA, STScI, Alex Cameron (Oxford)
🔭 🧪 #science #extragalactic #cosmology #JWST #Webb
1/5
November 29, 2025 at 6:20 PM
Exceptional!
The faint blur you see in this NIRCam image refers to GS-NDG-9422, a "strange" galaxy identified with the JWST and announced in 2024.
➡️ science.nasa.gov/missions/web...
Credits: NASA, ESA, CSA, STScI, Alex Cameron (Oxford)
🔭 🧪 #science #extragalactic #cosmology #JWST #Webb
1/5
The faint blur you see in this NIRCam image refers to GS-NDG-9422, a "strange" galaxy identified with the JWST and announced in 2024.
➡️ science.nasa.gov/missions/web...
Credits: NASA, ESA, CSA, STScI, Alex Cameron (Oxford)
🔭 🧪 #science #extragalactic #cosmology #JWST #Webb
1/5
Reposted by Leonardo Petrillo
Completely fascinated by this Martian sunset, captured by the Navcam aboard NASA's Perseverance Mars Rover on May 2, 2024 (Sol 1137).
Image Credit: NASA/JPL-Caltech
➡️ science.nasa.gov/mission/mars...
🔭 🧪 #planetsci #science #Mars #NASA #Perseverance
1/2
Image Credit: NASA/JPL-Caltech
➡️ science.nasa.gov/mission/mars...
🔭 🧪 #planetsci #science #Mars #NASA #Perseverance
1/2
November 28, 2025 at 12:05 AM
Completely fascinated by this Martian sunset, captured by the Navcam aboard NASA's Perseverance Mars Rover on May 2, 2024 (Sol 1137).
Image Credit: NASA/JPL-Caltech
➡️ science.nasa.gov/mission/mars...
🔭 🧪 #planetsci #science #Mars #NASA #Perseverance
1/2
Image Credit: NASA/JPL-Caltech
➡️ science.nasa.gov/mission/mars...
🔭 🧪 #planetsci #science #Mars #NASA #Perseverance
1/2
Reposted by Leonardo Petrillo
Every now and then you find a science piece that is both razor-sharp and genuinely funny.
“Avi and the Content Factory” by @deschscoveries.bsky.social is one of those rare gems—a brilliant piece of scientific satire.
Highly recommended—for...⤵️
➡️ medium.com/@steve.desch...
🔭 🧪 #science
1/5
“Avi and the Content Factory” by @deschscoveries.bsky.social is one of those rare gems—a brilliant piece of scientific satire.
Highly recommended—for...⤵️
➡️ medium.com/@steve.desch...
🔭 🧪 #science
1/5
Avi and the Content Factory
“Where did you find this script?” my producer asked.
medium.com
November 27, 2025 at 3:02 PM
Every now and then you find a science piece that is both razor-sharp and genuinely funny.
“Avi and the Content Factory” by @deschscoveries.bsky.social is one of those rare gems—a brilliant piece of scientific satire.
Highly recommended—for...⤵️
➡️ medium.com/@steve.desch...
🔭 🧪 #science
1/5
“Avi and the Content Factory” by @deschscoveries.bsky.social is one of those rare gems—a brilliant piece of scientific satire.
Highly recommended—for...⤵️
➡️ medium.com/@steve.desch...
🔭 🧪 #science
1/5
Reposted by Leonardo Petrillo
The Hubble image shows UGC 12591, a rare isolated S0/Sa galaxy – a giant hybrid between a lenticular and an early-type spiral.
➡️ apod.nasa.gov/apod/ap17030...
Image by ESA/Hubble & NASA
🔭 🧪 #science #extragalactic #cosmology
1/6
➡️ apod.nasa.gov/apod/ap17030...
Image by ESA/Hubble & NASA
🔭 🧪 #science #extragalactic #cosmology
1/6
November 27, 2025 at 12:21 AM
The Hubble image shows UGC 12591, a rare isolated S0/Sa galaxy – a giant hybrid between a lenticular and an early-type spiral.
➡️ apod.nasa.gov/apod/ap17030...
Image by ESA/Hubble & NASA
🔭 🧪 #science #extragalactic #cosmology
1/6
➡️ apod.nasa.gov/apod/ap17030...
Image by ESA/Hubble & NASA
🔭 🧪 #science #extragalactic #cosmology
1/6
Reposted by Leonardo Petrillo
This historic picture of Jupiter’s southern half always stops me in my tracks.
Voyager 2 grabbed it on 25 June 1979 when it was already down to 12 million kilometres and still closing fast.
photojournal.jpl.nasa.gov/catalog/PIA0...
Pic by NASA/JPL
🔭 🧪 #science
1/4
Voyager 2 grabbed it on 25 June 1979 when it was already down to 12 million kilometres and still closing fast.
photojournal.jpl.nasa.gov/catalog/PIA0...
Pic by NASA/JPL
🔭 🧪 #science
1/4
November 25, 2025 at 11:43 PM
This historic picture of Jupiter’s southern half always stops me in my tracks.
Voyager 2 grabbed it on 25 June 1979 when it was already down to 12 million kilometres and still closing fast.
photojournal.jpl.nasa.gov/catalog/PIA0...
Pic by NASA/JPL
🔭 🧪 #science
1/4
Voyager 2 grabbed it on 25 June 1979 when it was already down to 12 million kilometres and still closing fast.
photojournal.jpl.nasa.gov/catalog/PIA0...
Pic by NASA/JPL
🔭 🧪 #science
1/4
Reposted by Leonardo Petrillo
1/10
Chiedo venia per il ritardo GALATTICO.
La notifica era finita in un buco nero… l’ho vista solo oggi!
Rimedio subito con un thread-lampo sull’aurora boreale dell’11-12 novembre 2025, anche se fuori tempo massimo.
(Consultare ALT per info sull'immagine)
Chiedo venia per il ritardo GALATTICO.
La notifica era finita in un buco nero… l’ho vista solo oggi!
Rimedio subito con un thread-lampo sull’aurora boreale dell’11-12 novembre 2025, anche se fuori tempo massimo.
(Consultare ALT per info sull'immagine)
November 24, 2025 at 10:22 PM
1/10
Chiedo venia per il ritardo GALATTICO.
La notifica era finita in un buco nero… l’ho vista solo oggi!
Rimedio subito con un thread-lampo sull’aurora boreale dell’11-12 novembre 2025, anche se fuori tempo massimo.
(Consultare ALT per info sull'immagine)
Chiedo venia per il ritardo GALATTICO.
La notifica era finita in un buco nero… l’ho vista solo oggi!
Rimedio subito con un thread-lampo sull’aurora boreale dell’11-12 novembre 2025, anche se fuori tempo massimo.
(Consultare ALT per info sull'immagine)
Reposted by Leonardo Petrillo
24 November 1859: 'On the Origin of Species', Charles Darwin's groundbreaking book, was published.
Darwin's magnum opus is considered to be the foundation of evolutionary biology and is undoubtedly one among the most important books in the history of science.
🧪 #science #histsci #Darwin
1/3
Darwin's magnum opus is considered to be the foundation of evolutionary biology and is undoubtedly one among the most important books in the history of science.
🧪 #science #histsci #Darwin
1/3
November 24, 2025 at 3:49 PM
Reposted by Leonardo Petrillo
For those who may have missed it when it first came out.
This stunning infrared image from #JWST, released 11 July 2022, shows the galaxy cluster SMACS 0723 as it appeared 4.6 billion years ago.
It's the Webb’s First Deep Field...
➡️ web.wwtassets.org/specials/202...
🔭 🧪 #science #cosmology
1/3
This stunning infrared image from #JWST, released 11 July 2022, shows the galaxy cluster SMACS 0723 as it appeared 4.6 billion years ago.
It's the Webb’s First Deep Field...
➡️ web.wwtassets.org/specials/202...
🔭 🧪 #science #cosmology
1/3
November 22, 2025 at 12:29 AM
For those who may have missed it when it first came out.
This stunning infrared image from #JWST, released 11 July 2022, shows the galaxy cluster SMACS 0723 as it appeared 4.6 billion years ago.
It's the Webb’s First Deep Field...
➡️ web.wwtassets.org/specials/202...
🔭 🧪 #science #cosmology
1/3
This stunning infrared image from #JWST, released 11 July 2022, shows the galaxy cluster SMACS 0723 as it appeared 4.6 billion years ago.
It's the Webb’s First Deep Field...
➡️ web.wwtassets.org/specials/202...
🔭 🧪 #science #cosmology
1/3
Reposted by Leonardo Petrillo
That little whitish puff just above and to the right of the Boogeyman’s head?
That’s the reflection nebula vdB 62.
Inside it hides HBC 515, a baby orange star only a few hundred thousand years old that’s still having violent tantrums (it’s an FU Orionis-type variable).
🔭 🧪 #science #sciart
1/3
That’s the reflection nebula vdB 62.
Inside it hides HBC 515, a baby orange star only a few hundred thousand years old that’s still having violent tantrums (it’s an FU Orionis-type variable).
🔭 🧪 #science #sciart
1/3
The Boogeyman Nebula 🌌
Here's a fun astrophotography target to try with your telescope this season - but be warned, this one takes TIME!
LDN 1622 is a dark nebula in the constellation Orion that resembles 'a dark figure with a head and arms' (I kinda see it!)
This is 10 hours!
#astrophotography
Here's a fun astrophotography target to try with your telescope this season - but be warned, this one takes TIME!
LDN 1622 is a dark nebula in the constellation Orion that resembles 'a dark figure with a head and arms' (I kinda see it!)
This is 10 hours!
#astrophotography
November 20, 2025 at 11:00 PM
Reposted by Leonardo Petrillo
🧵
This breathtaking composite was obtained with data from Chandra, Hubble, Spitzer, to mark the 22nd anniversary in orbit of Hubble.
The pic shows 30 Doradus, also known as the Tarantula Nebula.
➡️ www.nasa.gov/image-articl...
Credits: NASA/CXC/PSU/STScI/JPL/L.Townsley et al.
🔭 🧪 #Hubble
1/5
This breathtaking composite was obtained with data from Chandra, Hubble, Spitzer, to mark the 22nd anniversary in orbit of Hubble.
The pic shows 30 Doradus, also known as the Tarantula Nebula.
➡️ www.nasa.gov/image-articl...
Credits: NASA/CXC/PSU/STScI/JPL/L.Townsley et al.
🔭 🧪 #Hubble
1/5
November 20, 2025 at 12:00 AM
🧵
This breathtaking composite was obtained with data from Chandra, Hubble, Spitzer, to mark the 22nd anniversary in orbit of Hubble.
The pic shows 30 Doradus, also known as the Tarantula Nebula.
➡️ www.nasa.gov/image-articl...
Credits: NASA/CXC/PSU/STScI/JPL/L.Townsley et al.
🔭 🧪 #Hubble
1/5
This breathtaking composite was obtained with data from Chandra, Hubble, Spitzer, to mark the 22nd anniversary in orbit of Hubble.
The pic shows 30 Doradus, also known as the Tarantula Nebula.
➡️ www.nasa.gov/image-articl...
Credits: NASA/CXC/PSU/STScI/JPL/L.Townsley et al.
🔭 🧪 #Hubble
1/5