Aeronomix (Guillaume G)
@aeronomix.bsky.social
Astrophysicist, lidar scientist
Comets are like 🐈: they have tails and they do what they want!
Comets are like 🐈: they have tails and they do what they want!
"The proposal did not provide sufficient details"... I only have 15 pages
(well, another proposal rejected. I don't know how people manage to get awarded some)
(well, another proposal rejected. I don't know how people manage to get awarded some)
December 11, 2025 at 6:50 PM
"The proposal did not provide sufficient details"... I only have 15 pages
(well, another proposal rejected. I don't know how people manage to get awarded some)
(well, another proposal rejected. I don't know how people manage to get awarded some)
Je suis content que l'on se pose la question du refroidissement des centres de calculs dans l'espace. C'est un des problèmes majeurs qui ne sont pas facilement résolu sans envoyer des tonnes de matériaux.
De mon côté, ce sont les rayons cosmiques qui me posent problème
De mon côté, ce sont les rayons cosmiques qui me posent problème
In sum: cooling is not better in space. It is far, FAR worse, necessitating objects vastly larger than anything we've built in space simply to cool off small datacenters. Nevermind launch, maintenance, troubleshooting, and radiation shielding.
December 10, 2025 at 6:17 PM
Je suis content que l'on se pose la question du refroidissement des centres de calculs dans l'espace. C'est un des problèmes majeurs qui ne sont pas facilement résolu sans envoyer des tonnes de matériaux.
De mon côté, ce sont les rayons cosmiques qui me posent problème
De mon côté, ce sont les rayons cosmiques qui me posent problème
Reposted by Aeronomix (Guillaume G)
Our #JUICE spacecraft captured comet #3IATLAS during its active phase, showing its glowing coma, plasma tail, and maybe even a dust tail.
The full data will arrive in February, but here is a sneak preview from JUICE's navigation camera.
More info 👉 www.esa.int/ESA_Multimed...
The full data will arrive in February, but here is a sneak preview from JUICE's navigation camera.
More info 👉 www.esa.int/ESA_Multimed...
December 4, 2025 at 4:11 PM
Our #JUICE spacecraft captured comet #3IATLAS during its active phase, showing its glowing coma, plasma tail, and maybe even a dust tail.
The full data will arrive in February, but here is a sneak preview from JUICE's navigation camera.
More info 👉 www.esa.int/ESA_Multimed...
The full data will arrive in February, but here is a sneak preview from JUICE's navigation camera.
More info 👉 www.esa.int/ESA_Multimed...
Reposted by Aeronomix (Guillaume G)
Gracefully carving through the solar corona, a mini eruption of filament plasma erupted from the Sun earlier today! Beautiful.
December 4, 2025 at 12:35 AM
Gracefully carving through the solar corona, a mini eruption of filament plasma erupted from the Sun earlier today! Beautiful.
Reposted by Aeronomix (Guillaume G)
This is how it feels right now...
December 3, 2025 at 4:14 PM
This is how it feels right now...
Reposted by Aeronomix (Guillaume G)
2 décembre 1995
30ème anniversaire du lancement de la sonde européenne SoHO.
Retrouvez mon article des 20 ans spacerelics.blogspot.com/2015/12/20em...
30ème anniversaire du lancement de la sonde européenne SoHO.
Retrouvez mon article des 20 ans spacerelics.blogspot.com/2015/12/20em...
December 1, 2025 at 11:11 PM
2 décembre 1995
30ème anniversaire du lancement de la sonde européenne SoHO.
Retrouvez mon article des 20 ans spacerelics.blogspot.com/2015/12/20em...
30ème anniversaire du lancement de la sonde européenne SoHO.
Retrouvez mon article des 20 ans spacerelics.blogspot.com/2015/12/20em...
Reposted by Aeronomix (Guillaume G)
The scale of today's X1.9 CME compared to the Earth. Truly a monstorous eruption.
December 1, 2025 at 9:30 PM
The scale of today's X1.9 CME compared to the Earth. Truly a monstorous eruption.
Reposted by Aeronomix (Guillaume G)
Goodness, that is a violent CME launching with this ongoing X-class flare. Look at the motion of the field lines close to the AR and the whipping of the solar atmosphere as a blast wave propagates away.
I still don't think Earth will see much if anything at all, but we'll see.
I still don't think Earth will see much if anything at all, but we'll see.
December 1, 2025 at 3:07 AM
Goodness, that is a violent CME launching with this ongoing X-class flare. Look at the motion of the field lines close to the AR and the whipping of the solar atmosphere as a blast wave propagates away.
I still don't think Earth will see much if anything at all, but we'll see.
I still don't think Earth will see much if anything at all, but we'll see.
Il semblerait qu'airbus ait besoin d'un spécialiste dans les interactions entre les rayons cosmiques (et les SEPs) et la matière aux altitudes de vol...
Airbus A320 repairs must be before next flight, bulletin shows reut.rs/4rsqawk
Airbus A320 repairs must be before next flight, bulletin shows
Airlines affected by a sweeping recall of Airbus A320 jets to fix a software glitch must carry out the work before the next flight, excluding any re-positioning flight to a repair base, an Airbus bulletin to airlines showed on Friday.
reut.rs
November 28, 2025 at 11:47 PM
Il semblerait qu'airbus ait besoin d'un spécialiste dans les interactions entre les rayons cosmiques (et les SEPs) et la matière aux altitudes de vol...
Reposted by Aeronomix (Guillaume G)
This is like a big deal story.
A320s are an extremely popular aircraft.
That is *a lot* of flights — and a lot of people impacted.
Cursed G2V stellar object.
More like a wrathful Ra!
A320s are an extremely popular aircraft.
That is *a lot* of flights — and a lot of people impacted.
Cursed G2V stellar object.
More like a wrathful Ra!
Airbus A320 repairs must be before next flight, bulletin shows reut.rs/4rsqawk
Airbus A320 repairs must be before next flight, bulletin shows
Airlines affected by a sweeping recall of Airbus A320 jets to fix a software glitch must carry out the work before the next flight, excluding any re-positioning flight to a repair base, an Airbus bulletin to airlines showed on Friday.
reut.rs
November 28, 2025 at 10:20 PM
This is like a big deal story.
A320s are an extremely popular aircraft.
That is *a lot* of flights — and a lot of people impacted.
Cursed G2V stellar object.
More like a wrathful Ra!
A320s are an extremely popular aircraft.
That is *a lot* of flights — and a lot of people impacted.
Cursed G2V stellar object.
More like a wrathful Ra!
My fridge status: the leftovers Swiss chard pie is safety held by the load bearing brie
November 28, 2025 at 3:17 AM
My fridge status: the leftovers Swiss chard pie is safety held by the load bearing brie
Reposted by Aeronomix (Guillaume G)
3I/ATLAS, the interstellar comet passing through our solar system, might have been radically transformed by cosmic rays over billions of years, altering it so thoroughly that we may never be able to work out where it came from.
We may never figure out where interstellar comet 3I/ATLAS came from
The surface of comet 3I/ATLAS may have been so radically altered by cosmic rays that deducing its home star system would be impossible
www.newscientist.com
November 18, 2025 at 3:54 AM
3I/ATLAS, the interstellar comet passing through our solar system, might have been radically transformed by cosmic rays over billions of years, altering it so thoroughly that we may never be able to work out where it came from.
Reposted by Aeronomix (Guillaume G)
THE GOLDEN COMET IS FALLING APART (2) Last week, California astronomer Dan Bartlett pointed his telescope at golden comet C/2025 K1 (ATLAS) to capture a close encounter with the Leo Triplet of galaxies. He quickly realized something was wrong spaceweathergallery2.com/indiv_upload...
November 16, 2025 at 5:14 PM
THE GOLDEN COMET IS FALLING APART (2) Last week, California astronomer Dan Bartlett pointed his telescope at golden comet C/2025 K1 (ATLAS) to capture a close encounter with the Leo Triplet of galaxies. He quickly realized something was wrong spaceweathergallery2.com/indiv_upload...
Reposted by Aeronomix (Guillaume G)
🔭 Alors que sur Terre, on pouvait observer de belles aurores boréales ces derniers jours ; la même éruption solaire a temporairement aveuglé le télescope spatial Euclid 😅
www.euclid-ec.org/here-comes-t...
📸 Konrad Kuijken / Euclid Consortium / ESA
www.euclid-ec.org/here-comes-t...
📸 Konrad Kuijken / Euclid Consortium / ESA
November 15, 2025 at 4:19 PM
🔭 Alors que sur Terre, on pouvait observer de belles aurores boréales ces derniers jours ; la même éruption solaire a temporairement aveuglé le télescope spatial Euclid 😅
www.euclid-ec.org/here-comes-t...
📸 Konrad Kuijken / Euclid Consortium / ESA
www.euclid-ec.org/here-comes-t...
📸 Konrad Kuijken / Euclid Consortium / ESA
Reposted by Aeronomix (Guillaume G)
Those were beautiful #aurorae in the past days. A solar storm brought a lot of protons to Earth. Not only to Earth but also to #ESAEuclid – but does #Euclid notice? Oh yes.
www.euclid-ec.org/here-comes-t...
#ESA #Sun #SpaceWeather #space
www.euclid-ec.org/here-comes-t...
#ESA #Sun #SpaceWeather #space
November 15, 2025 at 3:52 PM
Those were beautiful #aurorae in the past days. A solar storm brought a lot of protons to Earth. Not only to Earth but also to #ESAEuclid – but does #Euclid notice? Oh yes.
www.euclid-ec.org/here-comes-t...
#ESA #Sun #SpaceWeather #space
www.euclid-ec.org/here-comes-t...
#ESA #Sun #SpaceWeather #space
Reposted by Aeronomix (Guillaume G)
This is wild! Here is a mosaic image combining satellite passes from NOAA 21, Suomi NPP, and NOAA 20 showing the auroral oval very extended during the geomagnetic storm earlier this week. I have annotated where the typical auroral oval rests over the north geomagnetic pole.
November 15, 2025 at 4:59 PM
This is wild! Here is a mosaic image combining satellite passes from NOAA 21, Suomi NPP, and NOAA 20 showing the auroral oval very extended during the geomagnetic storm earlier this week. I have annotated where the typical auroral oval rests over the north geomagnetic pole.
Reposted by Aeronomix (Guillaume G)
one thing we should, but probably won’t, take away from the Epstein emails is that it’s a massive risk to tie academic funding to philanthropy
November 15, 2025 at 4:56 AM
one thing we should, but probably won’t, take away from the Epstein emails is that it’s a massive risk to tie academic funding to philanthropy
Reposted by Aeronomix (Guillaume G)
Reposted by Aeronomix (Guillaume G)
NASA's just-launched ESCAPADE mission is trying out a novel trajectory to Mars, one that's slower but allows much more flexible launch dates. The flight path also provides a bonus science session at the L2 equilibrium point near Earth. 🧪🔭
skyandtelescope.org/astronomy-ne...
skyandtelescope.org/astronomy-ne...
November 14, 2025 at 4:46 PM
NASA's just-launched ESCAPADE mission is trying out a novel trajectory to Mars, one that's slower but allows much more flexible launch dates. The flight path also provides a bonus science session at the L2 equilibrium point near Earth. 🧪🔭
skyandtelescope.org/astronomy-ne...
skyandtelescope.org/astronomy-ne...
Reposted by Aeronomix (Guillaume G)
🌍 Splendide photo satellite au-dessus du pôle Nord montrant les aurores boréales des dernières nuits 😍
Circling the world over the last couple of nights, the aurora borealis put on quite a spectacular show in the sky of the northern hemisphere.
November 14, 2025 at 7:17 AM
🌍 Splendide photo satellite au-dessus du pôle Nord montrant les aurores boréales des dernières nuits 😍
Super: le communiqué est aussi en Français
www.aeronomie.be/fr/nouvelles...
www.aeronomie.be/fr/nouvelles...
3I/ATLAS : une comète interstellaire qui cache ses secrets sous une croûte irradiée
3I/ATLAS est une comète interstellaire provenant d'un autre système stellaire. De nouvelles recherches menées par l'Institut royal d'Aéronomie Spatiale de Belgique (IASB) montrent que 3I/ATLAS n'expos...
www.aeronomie.be
November 14, 2025 at 2:40 PM
Super: le communiqué est aussi en Français
www.aeronomie.be/fr/nouvelles...
www.aeronomie.be/fr/nouvelles...
Reposted by Aeronomix (Guillaume G)
Interstellar Comet 3I/ATLAS is fragmenting on its way back out from the Sun. 🧪🔭
www.virtualtelescope.eu/2025/11/13/c...
www.virtualtelescope.eu/2025/11/13/c...
November 13, 2025 at 9:21 PM
Interstellar Comet 3I/ATLAS is fragmenting on its way back out from the Sun. 🧪🔭
www.virtualtelescope.eu/2025/11/13/c...
www.virtualtelescope.eu/2025/11/13/c...
Reposted by Aeronomix (Guillaume G)
Check out this crazy mosaic image of the auroral oval from space on the night of Nov 11-12!
You an can see just how extended the oval was due to the impressive solar storm that impacted and delivered a G4 (Kp 9-) geomagnetic storm - the third strongest of solar cycle 25!
You an can see just how extended the oval was due to the impressive solar storm that impacted and delivered a G4 (Kp 9-) geomagnetic storm - the third strongest of solar cycle 25!
November 13, 2025 at 4:56 PM
Check out this crazy mosaic image of the auroral oval from space on the night of Nov 11-12!
You an can see just how extended the oval was due to the impressive solar storm that impacted and delivered a G4 (Kp 9-) geomagnetic storm - the third strongest of solar cycle 25!
You an can see just how extended the oval was due to the impressive solar storm that impacted and delivered a G4 (Kp 9-) geomagnetic storm - the third strongest of solar cycle 25!
Hampton, va, right now
November 12, 2025 at 2:27 AM
Hampton, va, right now