Helio Jaques
@heliojaques.bsky.social
Reposted by Helio Jaques
Quick clarification about this image of interstellar comet 3I/ATLAS 👇
The big background is a wide-field deep exposure from ground-based amateur telescopes. The blue inset is a Hubble Space Telescope close-up of the inner coma. Same comet, two very different zoom levels and physical scales.
The big background is a wide-field deep exposure from ground-based amateur telescopes. The blue inset is a Hubble Space Telescope close-up of the inner coma. Same comet, two very different zoom levels and physical scales.
December 6, 2025 at 9:39 PM
Quick clarification about this image of interstellar comet 3I/ATLAS 👇
The big background is a wide-field deep exposure from ground-based amateur telescopes. The blue inset is a Hubble Space Telescope close-up of the inner coma. Same comet, two very different zoom levels and physical scales.
The big background is a wide-field deep exposure from ground-based amateur telescopes. The blue inset is a Hubble Space Telescope close-up of the inner coma. Same comet, two very different zoom levels and physical scales.
Reposted by Helio Jaques
The word ‘law’ is connected with ‘legal’, but etymologically they’re entirely unrelated.
‘Law’ is related to the verbs ‘to lie’ and ‘to lay’. It comes from a Germanic word meaning “things that are laid out”.
‘Legal’ is related to ‘loyal’. Both derive from Latin ‘lēx’ (law).
Zoom in to learn more:
‘Law’ is related to the verbs ‘to lie’ and ‘to lay’. It comes from a Germanic word meaning “things that are laid out”.
‘Legal’ is related to ‘loyal’. Both derive from Latin ‘lēx’ (law).
Zoom in to learn more:
December 5, 2025 at 7:38 PM
The word ‘law’ is connected with ‘legal’, but etymologically they’re entirely unrelated.
‘Law’ is related to the verbs ‘to lie’ and ‘to lay’. It comes from a Germanic word meaning “things that are laid out”.
‘Legal’ is related to ‘loyal’. Both derive from Latin ‘lēx’ (law).
Zoom in to learn more:
‘Law’ is related to the verbs ‘to lie’ and ‘to lay’. It comes from a Germanic word meaning “things that are laid out”.
‘Legal’ is related to ‘loyal’. Both derive from Latin ‘lēx’ (law).
Zoom in to learn more:
Reposted by Helio Jaques
Reposted by Helio Jaques
I borrowed and edited a reading/writing/discussion assignment from @jillianscudder.com for my #Astro101 class on claims of 3I/ATLAS being alien tech... and it went WELL! 🔭🎢
A few years ago when I tried this, it flopped. All the news media was still too deferential to the "Harvard astronomer" (1/n)
A few years ago when I tried this, it flopped. All the news media was still too deferential to the "Harvard astronomer" (1/n)
December 3, 2025 at 6:02 PM
I borrowed and edited a reading/writing/discussion assignment from @jillianscudder.com for my #Astro101 class on claims of 3I/ATLAS being alien tech... and it went WELL! 🔭🎢
A few years ago when I tried this, it flopped. All the news media was still too deferential to the "Harvard astronomer" (1/n)
A few years ago when I tried this, it flopped. All the news media was still too deferential to the "Harvard astronomer" (1/n)
Reposted by Helio Jaques
What’s the most succesful Germanic colour word? It’s the dullest of them all.
The Germanic word *grīs (grey) was borrowed into Romance, becoming ‘gris’ (French, Spanish etc.) and ‘grigio’ (Italian).
English ‘grey/gray’ has a different origin though: it’s related to German ‘grau’.
Click for more:
The Germanic word *grīs (grey) was borrowed into Romance, becoming ‘gris’ (French, Spanish etc.) and ‘grigio’ (Italian).
English ‘grey/gray’ has a different origin though: it’s related to German ‘grau’.
Click for more:
December 3, 2025 at 6:43 PM
What’s the most succesful Germanic colour word? It’s the dullest of them all.
The Germanic word *grīs (grey) was borrowed into Romance, becoming ‘gris’ (French, Spanish etc.) and ‘grigio’ (Italian).
English ‘grey/gray’ has a different origin though: it’s related to German ‘grau’.
Click for more:
The Germanic word *grīs (grey) was borrowed into Romance, becoming ‘gris’ (French, Spanish etc.) and ‘grigio’ (Italian).
English ‘grey/gray’ has a different origin though: it’s related to German ‘grau’.
Click for more:
Reposted by Helio Jaques
From Lindsey Gordon @lcgordon.bsky.social : This Beyond post will go through the basics of numeric simulation jargon with diagrams and examples to help you get moving in astrophysical simulations. ⚛️🔭☄🧪
astrobites.org/2025/12/02/a...
astrobites.org/2025/12/02/a...
[Beyond] Intro to Astrophysical Simulation Jargon
This Beyond post will go through the basics of numeric simulation jargon with diagrams and examples to help you get moving in astrophysical simulations.
astrobites.org
December 3, 2025 at 11:11 PM
From Lindsey Gordon @lcgordon.bsky.social : This Beyond post will go through the basics of numeric simulation jargon with diagrams and examples to help you get moving in astrophysical simulations. ⚛️🔭☄🧪
astrobites.org/2025/12/02/a...
astrobites.org/2025/12/02/a...
Reposted by Helio Jaques
New lecture from my solar system class is online- all about the origin of the moon, and why we think a giant impact is to blame! 🌔
🔭🧪🎢
youtu.be/eNOQvv_90Kc
🔭🧪🎢
youtu.be/eNOQvv_90Kc
Solar System Lecture- the Origin of the Moon
YouTube video by Astronomer here!
youtu.be
December 3, 2025 at 9:55 PM
New lecture from my solar system class is online- all about the origin of the moon, and why we think a giant impact is to blame! 🌔
🔭🧪🎢
youtu.be/eNOQvv_90Kc
🔭🧪🎢
youtu.be/eNOQvv_90Kc
Reposted by Helio Jaques
2,700-Year-Old Total Solar Eclipse Observations Give Insight to Our Ancient Solar System (and to Earth Rotation) www.discovermagazine.com/2-700-year-o...
2,700-Year-Old Total Solar Eclipse Observations Give Insight to Our Ancient Solar System
Learn more about two of the earliest reports of a total solar eclipse and corona, which were recorded in China, and solve several mysteries about our ancient Solar System.
www.discovermagazine.com
December 3, 2025 at 4:56 AM
2,700-Year-Old Total Solar Eclipse Observations Give Insight to Our Ancient Solar System (and to Earth Rotation) www.discovermagazine.com/2-700-year-o...
Reposted by Helio Jaques
I'm best known these days for visualizing Gaia Mission data but I've also tried my hand at visualizing HI velocity data. Here, for example, is a slice of HI4PI. I'd love to see more papers about HI4PI.
December 2, 2025 at 10:05 AM
I'm best known these days for visualizing Gaia Mission data but I've also tried my hand at visualizing HI velocity data. Here, for example, is a slice of HI4PI. I'd love to see more papers about HI4PI.
Reposted by Helio Jaques
Gaia DR4 is expected to be released in December 2026, so today is a good day to start the countdown!
Why is Gaia DR4 going to be so exciting? Here are several reasons.
kevinjardine.dev/blog/post-13/
Why is Gaia DR4 going to be so exciting? Here are several reasons.
kevinjardine.dev/blog/post-13/
Counting down to Gaia DR4
The next data release from the revolutionary star mapping Gaia Mission
kevinjardine.dev
December 1, 2025 at 3:59 PM
Gaia DR4 is expected to be released in December 2026, so today is a good day to start the countdown!
Why is Gaia DR4 going to be so exciting? Here are several reasons.
kevinjardine.dev/blog/post-13/
Why is Gaia DR4 going to be so exciting? Here are several reasons.
kevinjardine.dev/blog/post-13/
Reposted by Helio Jaques
I wrote some articles on Medium, starting with this one, and I expect I’ll write more soon.
medium.com/@steve.desch...
medium.com/@steve.desch...
This is not the quality of pseudoscience infotainment to which I have grown accustomed
Teasing the public with fraudulent or self-deluded promises of aliens used to mean something. It took work. It meant slapping together…
medium.com
December 1, 2025 at 10:24 PM
I wrote some articles on Medium, starting with this one, and I expect I’ll write more soon.
medium.com/@steve.desch...
medium.com/@steve.desch...
Reposted by Helio Jaques
Interstellar comet 3I/ATLAS is erupting in ‘ice volcanoes’, new images suggest
Comet 3I/ATLAS appears to have spiral jets shooting off its surface, which the authors of a new preprint interpret as a type of cryovolcanism. (Image credit: Josep M. Trigo-Rodríguez/B06 Montseny Observatory) The…
Comet 3I/ATLAS appears to have spiral jets shooting off its surface, which the authors of a new preprint interpret as a type of cryovolcanism. (Image credit: Josep M. Trigo-Rodríguez/B06 Montseny Observatory) The…
Interstellar comet 3I/ATLAS is erupting in ‘ice volcanoes’, new images suggest
Comet 3I/ATLAS appears to have spiral jets shooting off its surface, which the authors of a new preprint interpret as a type of cryovolcanism. (Image credit: Josep M. Trigo-Rodríguez/B06 Montseny Observatory) The interstellar comet 3I/ATLAS could be covered in erupting "ice volcanoes," new observations suggest. Researchers found evidence that as the comet approached the sun, a series of cryovolcanoes (nicknamed "ice volcanoes") erupted on its surface.
toolcome.com
December 2, 2025 at 1:03 AM
Interstellar comet 3I/ATLAS is erupting in ‘ice volcanoes’, new images suggest
Comet 3I/ATLAS appears to have spiral jets shooting off its surface, which the authors of a new preprint interpret as a type of cryovolcanism. (Image credit: Josep M. Trigo-Rodríguez/B06 Montseny Observatory) The…
Comet 3I/ATLAS appears to have spiral jets shooting off its surface, which the authors of a new preprint interpret as a type of cryovolcanism. (Image credit: Josep M. Trigo-Rodríguez/B06 Montseny Observatory) The…
Reposted by Helio Jaques
From Alexandra Masegian @spiralgalexy.bsky.social : Today’s bite explores how munching on tiny black holes can lead stars to an early demise. ⚛️🔭☄🧪
astrobites.org/2025/11/29/t...
astrobites.org/2025/11/29/t...
The snack that fights back
Today’s bite explores how munching on tiny black holes can lead stars to an early demise.
astrobites.org
December 2, 2025 at 1:32 AM
From Alexandra Masegian @spiralgalexy.bsky.social : Today’s bite explores how munching on tiny black holes can lead stars to an early demise. ⚛️🔭☄🧪
astrobites.org/2025/11/29/t...
astrobites.org/2025/11/29/t...
Reposted by Helio Jaques
Story time! The star Betelgeuse gets its name from Arabic يد الجوزاء <Yad al-Jawzāʾ>: "Hand of Orion" (kind of, see below). In the 1200s this was misread as بد الجوزاء <Bad al-Jawzāʾ>, and was transliterated into Latin as "Bedalgeuze."
🧵 1/10
🧵 1/10
November 28, 2025 at 10:40 PM
Story time! The star Betelgeuse gets its name from Arabic يد الجوزاء <Yad al-Jawzāʾ>: "Hand of Orion" (kind of, see below). In the 1200s this was misread as بد الجوزاء <Bad al-Jawzāʾ>, and was transliterated into Latin as "Bedalgeuze."
🧵 1/10
🧵 1/10
Reposted by Helio Jaques
Just got this very cool @saltandpeppergames.bsky.social tabletop RPG (h/t @stewartbrookes.bsky.social)! The designers did a great job re-imagining the images, and gameplay is divided into the manuscript's six sections. #Voynich himself is a character! Can't wait to try it with my family.
November 29, 2025 at 6:21 PM
Just got this very cool @saltandpeppergames.bsky.social tabletop RPG (h/t @stewartbrookes.bsky.social)! The designers did a great job re-imagining the images, and gameplay is divided into the manuscript's six sections. #Voynich himself is a character! Can't wait to try it with my family.
Reposted by Helio Jaques
#IMC2026, Weds, 8 July, 7pm! Four medievalists who've published 'trade' books will discuss the process - from finding an agent to working with publishers & beyond. Sponsored by @ihr.bsky.social. @realmandeville.bsky.social @saracharles.bsky.social @eleanormaybaker.bsky.social @imc-leeds.bsky.social
November 29, 2025 at 1:19 PM
#IMC2026, Weds, 8 July, 7pm! Four medievalists who've published 'trade' books will discuss the process - from finding an agent to working with publishers & beyond. Sponsored by @ihr.bsky.social. @realmandeville.bsky.social @saracharles.bsky.social @eleanormaybaker.bsky.social @imc-leeds.bsky.social
=== El astrofísico Steve Desch (Arizona State University), entre otros, ha calificado las afirmaciones de Loeb como "sensacionalismo ridículo" que representa un "verdadero colapso del proceso de revisión por pares y el método científico" ===
www.newstecnicas.info.ve/2025/11/avi-...
www.newstecnicas.info.ve/2025/11/avi-...
🐺 La Humillación Científica: ¿Qué dice Avi Loeb sobre 3I/ATLAS? Análisis de la Credibilidad y el 'Efecto Lobo' en la Búsqueda Extraterrestre 📉
Análisis de la credibilidad de Avi Loeb tras el 3I/ATLAS. ¿Qué dice el científico, cómo reaccionan sus seguidores y el riesgo del "Efecto Lobo"
www.newstecnicas.info.ve
November 29, 2025 at 5:32 PM
=== El astrofísico Steve Desch (Arizona State University), entre otros, ha calificado las afirmaciones de Loeb como "sensacionalismo ridículo" que representa un "verdadero colapso del proceso de revisión por pares y el método científico" ===
www.newstecnicas.info.ve/2025/11/avi-...
www.newstecnicas.info.ve/2025/11/avi-...
Reposted by Helio Jaques
Avi has risen to new levels of Galilean messiah-complex absurdity, implying that the latest calculations of 3I/ATLAS’ trajectory were made to counter his claim of alien intelligence directing where the comet is headed. 🔭
November 28, 2025 at 9:44 AM
Avi has risen to new levels of Galilean messiah-complex absurdity, implying that the latest calculations of 3I/ATLAS’ trajectory were made to counter his claim of alien intelligence directing where the comet is headed. 🔭
Reposted by Helio Jaques
From Skylar Grayson @skylargrayson.bsky.social : Today’s paper explores how a potential bias in the way we calculate the distance to galaxies impacts our understanding of dark energy. ⚛️🔭☄🧪
astrobites.org/2025/11/26/s...
astrobites.org/2025/11/26/s...
Not-So Standard Candles: How a Bias in Distance Calculations Impacts Our Understanding of Dark Energy
Today's paper explores how a potential bias in the way we calculate the distance to galaxies impacts our understanding of dark energy.
astrobites.org
November 28, 2025 at 10:45 PM
From Skylar Grayson @skylargrayson.bsky.social : Today’s paper explores how a potential bias in the way we calculate the distance to galaxies impacts our understanding of dark energy. ⚛️🔭☄🧪
astrobites.org/2025/11/26/s...
astrobites.org/2025/11/26/s...
Reposted by Helio Jaques
🚨 ATENÇÃO: o Congresso avalia hoje os vetos do Governo do Brasil ao PL do Licenciamento Ambiental.
⚠️ Derrubar os vetos do Governo é transformar o PL do Licenciamento no PL da Devastação.
👉 Defenda o nosso meio ambiente e o nosso futuro!
📲 Digital/PR
⚠️ Derrubar os vetos do Governo é transformar o PL do Licenciamento no PL da Devastação.
👉 Defenda o nosso meio ambiente e o nosso futuro!
📲 Digital/PR
November 27, 2025 at 2:35 PM
🚨 ATENÇÃO: o Congresso avalia hoje os vetos do Governo do Brasil ao PL do Licenciamento Ambiental.
⚠️ Derrubar os vetos do Governo é transformar o PL do Licenciamento no PL da Devastação.
👉 Defenda o nosso meio ambiente e o nosso futuro!
📲 Digital/PR
⚠️ Derrubar os vetos do Governo é transformar o PL do Licenciamento no PL da Devastação.
👉 Defenda o nosso meio ambiente e o nosso futuro!
📲 Digital/PR
Reposted by Helio Jaques
"Tracking the Activity of the Interstellar Object 3I/ATLAS through Its Perihelion"
by Eubanks et al
DOI: 10.3847/2515-5172/ae23c8
On behalf of the American Astronomical Society (AAS), we are pleased to let you know that your article has now been published at doi.org/10.3847/2515...
by Eubanks et al
DOI: 10.3847/2515-5172/ae23c8
On behalf of the American Astronomical Society (AAS), we are pleased to let you know that your article has now been published at doi.org/10.3847/2515...
Tracking the Activity of the Interstellar Object 3I/ATLAS through Its Perihelion - IOPscience
Tracking the Activity of the Interstellar Object 3I/ATLAS through Its Perihelion, Eubanks, T. Marshall, DeForest, Craig E., Walsh, Kevin J., Porter, Simon, Lehmann, Thomas, Bills, Bruce G., Hibberd, A...
doi.org
November 27, 2025 at 6:21 PM
"Tracking the Activity of the Interstellar Object 3I/ATLAS through Its Perihelion"
by Eubanks et al
DOI: 10.3847/2515-5172/ae23c8
On behalf of the American Astronomical Society (AAS), we are pleased to let you know that your article has now been published at doi.org/10.3847/2515...
by Eubanks et al
DOI: 10.3847/2515-5172/ae23c8
On behalf of the American Astronomical Society (AAS), we are pleased to let you know that your article has now been published at doi.org/10.3847/2515...
Reposted by Helio Jaques
O Governo do Brasil segue avançando no combate ao crime organizado.
A Receita Federal, em conjunto com órgãos parceiros, realizou nesta quinta (27) a Operação Poço do Lobato para combater um esquema internacional de sonegação e lavagem de dinheiro.
👇
A Receita Federal, em conjunto com órgãos parceiros, realizou nesta quinta (27) a Operação Poço do Lobato para combater um esquema internacional de sonegação e lavagem de dinheiro.
👇
November 27, 2025 at 7:17 PM
O Governo do Brasil segue avançando no combate ao crime organizado.
A Receita Federal, em conjunto com órgãos parceiros, realizou nesta quinta (27) a Operação Poço do Lobato para combater um esquema internacional de sonegação e lavagem de dinheiro.
👇
A Receita Federal, em conjunto com órgãos parceiros, realizou nesta quinta (27) a Operação Poço do Lobato para combater um esquema internacional de sonegação e lavagem de dinheiro.
👇
Reposted by Helio Jaques
Reposted by Helio Jaques
This is an incredible image of comet 3I/ATLAS, taken by Satoru Murata ICQ Comet Observations group on 16 November 2025 from western New Mexico.
Structure within the major dust tail from the comet is clearly visible, together with two smaller jets trailing the nucleus and maybe even an anti-tail.
Structure within the major dust tail from the comet is clearly visible, together with two smaller jets trailing the nucleus and maybe even an anti-tail.
November 24, 2025 at 11:50 PM
This is an incredible image of comet 3I/ATLAS, taken by Satoru Murata ICQ Comet Observations group on 16 November 2025 from western New Mexico.
Structure within the major dust tail from the comet is clearly visible, together with two smaller jets trailing the nucleus and maybe even an anti-tail.
Structure within the major dust tail from the comet is clearly visible, together with two smaller jets trailing the nucleus and maybe even an anti-tail.