Aeronomix (Guillaume G)
@aeronomix.bsky.social
740 followers 650 following 580 posts
Astrophysicist, lidar scientist Comets are like 🐈: they have tails and they do what they want!
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aeronomix.bsky.social
On ne sais même pas quand le gouvernement US aura une chance de terminer son shutdown... Ce qui n'est pas pratique pour Artemis
aeronomix.bsky.social
It is Monday evening in France, early afternoon in eastern US. The shutdown has lasted, so far, about 10 times more than the latest French government....
Reposted by Aeronomix (Guillaume G)
wblakekimber.bsky.social
Another reason why the metric system is superior.
Reposted by Aeronomix (Guillaume G)
astroaure.bsky.social
☄️ La comète interstellaire 3I/ATLAS passe en ce moment au plus près de Mars (à ~30 millions de km). La nuit dernière, le rover Perseverance a pointé sa caméra Mastcam-Z vers le ciel. Et il semblerait bien qu'il l'ait observée 🤩 On voit un petit nuage qui se trouve parfaitement là où on l'attendait 🤯
Simulation sur Stellarium de ce que devait observer Perseverance dans la nuit du 02/10/2025 vers 6h UTC
Reposted by Aeronomix (Guillaume G)
cnes.fr
CNES @cnes.fr · 8d
🎂 60 ans d’aventures stratosphériques à Aire-sur-l’Adour !
Depuis 1964, ce site historique du #CNES est le “stratoport” de nos ballons : recherche atmosphérique, innovation et formation des équipes 🎈

📸 Retour en images ➡️ cnes.fr/actualites/r...

#Ballons #Stratosphère
Photographie en noir et blanc montrant la préparation d’un ballon stratosphérique devant un grand bâtiment technique du CNES à Aire-sur-l’Adour, dans les années 1960. On distingue le ballon translucide en train d’être gonflé, une grue sur la gauche, plusieurs antennes au sommet du bâtiment et des techniciens au sol supervisant l’opération.
aeronomix.bsky.social
Well, I did some simulations to show that a manuscript's claims were bad, sent my explanation to the journal (a respectable one) with a suggestion to make major modifications... and they decided to publish "as it is".

I am going to refuse reviewing for a little while (and publish elsewhere)
aeronomix.bsky.social
"Pfout pfout" n'est vraiment pas un réponse acceptable: on a enfin une entreprise européenne qui fait de la gravité artificielle lors d'une phase de vol, une première mondiale dans cette catégorie ! 😜
aeronomix.bsky.social
If you want to watch some videos in French, G Milgram has been doing several investigations on this kind of conspiracy therapies... (some are quite crazy, people manage to get gov money for some blue liquid that is colored water).
youtube.com/@ggmilgram?s...
aeronomix.bsky.social
I wouldn't mind a nice SEP event, I have a real-time thing to test
Reposted by Aeronomix (Guillaume G)
rebeccarhelm.bsky.social
I get that the news cycle is packed right now, but I just heard from a colleague at the Smithsonian that this is fully a GIANT SQUID BEING EATEN BY A SPERM WHALE and it’s possibly the first ever confirmed video according to a friend at NOAA

10 YEAR OLD ME IS LOSING HER MIND (a thread 🧵)
Reposted by Aeronomix (Guillaume G)
vincentledvina.bsky.social
Great news! SWFO-L1 successfully launched at 7:32am EDT, Sep 24, and a successful acquisition of signal has been received.

This NOAA satellite is the first designed specifically for continuous, operational space weather observations. This includes solar wind and coronagraph measurements.
aeronomix.bsky.social
Quoi?! L'Amérique trumpiste croit en l'existence de la lune? 😲
Reposted by Aeronomix (Guillaume G)
cosmicrami.com
Worth re-sharing this one with the alt-text added in. 🔭

“And that's how it was for the next ten nights. A flare, spurting out from Mars – bright green, drawing a green mist behind it – a beautiful, but somehow disturbing sight. Ogilvy assured me we were in no danger….”
A spectacular image of two comets that are in the same region of the sky. Both are bright green and have a bulb for the head. They have long narrow yet diffuse tails. They are set amongst a field of stars.
aeronomix.bsky.social
j'ai l'impression que ça fait plus 30 ans que 20 qu'on nous dit que la prochaine génération ira sur Mars...
aeronomix.bsky.social
of course it works the second I send the message
aeronomix.bsky.social
Internal nasa issue, they are working on it (they sent an email)
aeronomix.bsky.social
Sans oublier que pas mal d'instruments ont été développés avant ces 10ans pour être sélectionnés...
Ce sont les missions comme Vénus Express ou insight , qui réutilisent des plates-formes mâtures, qui nous font croire qu'on peut faire une mission interplanétaire en quelques années
aeronomix.bsky.social
J'aimerai être optimiste, mais je me souviens quand bepi colombo devait avoir un lander...
(C'est olivier qui présente? je vois mal)
Reposted by Aeronomix (Guillaume G)
vincentledvina.bsky.social
Fun fact, the current coronal hole about to face Earth has been alive since FEBRUARY this year. This is a very long-lived coronal hole and a hallmark of a descending-phase solar cycle. Check out this movie of the Earth-facing disk via SDO/AIA (212 Å filter) over the past seven or so months.
Reposted by Aeronomix (Guillaume G)
ryanjfrench.bsky.social
There is a GIANT HOLE in the Sun’s atmosphere! But don’t worry, this is perfectly normal. ‘Coronal holes’ are low density regions of the Sun’s atmosphere, where the solar wind is able to escape quickly (700 km per second).