🛴Astrodom🍒#StandWithScience #BZH

#Astronomie #NoFakescience #StandWithScience #BZH

[🛴Astrodom🍒#StandWithScience #BZH @djdomastro]

NGC 281 (Pacman) dans Cassiopée en SHO
Montalba Le Château (460ex-eq6pro-80/480-red0.79)

#astrophotographie
#montalbalechateau

[TF1Info @TF1Info]

🔴 Pyrénées-Orientales : nuit de lutte pour les sapeurs-pompiers, des habitants évacués ⬇️

📺 #LE13H de @TF1 présenté par @ACCoudray

[L'Indépendant @lindependant]

🔴 L'incendie dans les Pyrénées-Orientales continue sa progression. Le préfet des Pyrénées-Orientales a annoncé l'évacuation de 5000 personnes dans le massif des Aspres. Les communes concernées sont : Caixas, Castelnou, Camélas, Saint-Michel-de-Llotes, Corbère, Boule d'Amont, Casefabre, Corbère-les-Cabanes, Marcevol (prieuré), Tarerach, Montalba-le-Château, Oms, Montauriol, Tordères, Llauro, Taillet, Taulis, Prunet et Belpuig et Sainte Colombe de la Commanderie.

[Katya @better_call_kat]

Une chanson en hommage au bac.
Mettez lunettes et gants, c'est corrosif

[Erika  @ExploreCosmos_]

Neutron stars are often described as the corpses of massive stars, but that description almost makes them sound passive. In reality, they are among the most extreme laboratories in the universe: objects where gravity, nuclear physics, magnetic fields and relativity are pushed into regimes that no experiment on Earth can reproduce.

A neutron star is born when a massive star exhausts its nuclear fuel and its core collapses under gravity. The outer layers are expelled in a supernova, while the inner core is compressed into an object only about the size of a city, but with more mass than the Sun. During that collapse, atoms are crushed so violently that electrons and protons are forced together, forming neutrons. The result is matter packed at a density comparable to, and possibly beyond, that inside an atomic nucleus.

That is what makes neutron stars so scientifically valuable. They are not just astronomical objects; they are natural experiments in the behaviour of matter under almost impossible pressure. One of the central questions is what actually exists inside them. We know the outer layers contain neutron rich matter, but the deep interior remains uncertain. It may be a superfluid of neutrons, or it may contain more exotic states of matter: hyperons, Bose condensates, or even deconfined quark matter. In other words, a neutron star may contain forms of matter that have not existed freely since the earliest moments of the universe.

This is why studying their mass and radius is so important. A slightly larger or smaller radius is not a minor detail; it changes what kinds of matter can survive inside. If a neutron star is very compact, the matter inside must be highly compressible. If it is larger, the internal pressure must be stronger. These measurements help constrain the equation of state, the physical relationship between pressure, density and temperature inside nuclear matter. It is one of the great unsolved problems connecting astrophysics with particle physics.

Neutron stars also allow us to test gravity in one of its strongest forms. Their surfaces have gravitational fields billions of times stronger than Earth’s. Light escaping from them is bent and redshifted by the curvature of spacetime. In binary systems, especially when two neutron stars orbit each other, their motion becomes a precise probe of general relativity. When they finally merge, they release gravitational waves: ripples in spacetime that carry information about their masses, spins and internal structure.

The merger of two neutron stars is especially important because it links several branches of astrophysics at once. It produces gravitational waves, electromagnetic radiation, gamma ray bursts, kilonovae and heavy elements. Many of the elements heavier than iron, including gold, platinum and rare earth elements, are thought to be forged in these violent collisions through rapid neutron capture. That means neutron stars are not only remnants of dead stars; they are also cosmic factories that help seed galaxies with some of the most valuable and complex elements in nature.

Some neutron stars become pulsars. These objects emit beams of radiation from their magnetic poles, and as the star rotates, those beams sweep across space like a lighthouse. When one points toward Earth, we see regular pulses. Some pulsars are so stable that they rival atomic clocks. This makes them powerful tools for testing physics, mapping the interstellar medium and searching for subtle effects such as low frequency gravitational waves.

Others become magnetars, a rare and even more extreme class of neutron star with magnetic fields trillions of times stronger than Earth’s. Their magnetic energy can crack the crust, trigger starquakes and release enormous bursts of X rays and gamma rays. A magnetar is a reminder that a neutron star is not simply a dense ball of matter; it is a dynamic object where magnetic stress, crustal physics and relativistic plasma can interact violently.

What makes neutron stars so compelling is that they sit at the boundary between what we understand and what we can only infer. They are small enough to seem almost unreal, yet massive enough to warp spacetime dramatically. They are dead stars, but they can pulse, flare, collide and manufacture heavy elements. They are astronomical objects, but their deepest importance may lie in what they reveal about matter itself.

Ultimately, the study of neutron stars matters because it does not only ask what these objects are. It asks what matter becomes when gravity has compressed it almost to the limit, how spacetime behaves around ultra compact objects, and how the universe builds some of its heaviest elements. Neutron stars are not just remnants. They are physical extremes made visible.

[Jeo Albant @jeoalbant]

🚨 🔥İkinci sıcak kubbe geliyor:
Avrupa için cehennemin kapıları açık kaldı:
Vur-Kaç yapmayacak, günlerce sürecek, "Omega Blokajı" Yolda!
Meteoroloji modellerine düşen son veriler çok daha sinsi ve yıpratıcı bir tabloyu ortaya koyuyor:
-Haziran sonundaki SICAK KUBBE’nin ardından, temmuz başında çok daha geniş bir alanı yutacak ve ilkinden çok daha uzun süre kalıcı olabilecek ikinci bir Sıcak Hava Kubbesi (Heat Dome) batı Avrupa üzerine kilitlenmeye hazırlanıyor

-Haziran sonundaki ilk kubbe aşırı agresif ama nispeten kısa süreliydi. Ancak 7 - 10 Temmuz vadeli son ECMWF çıktılarına göre bu yeni sistem bir Atmosferik Blokaj (Omega) oluşturuyor. Yüksek basınç sistemi Avrupa'nın üzerinde adeta devasa bir "ısı kapağı" gibi çakılı kalabilir ve sıcak havayı günlerce (en az 6-9 gün) içeri hapsedebilir.

-🔥 Kümülatif (Birikimli) Isı Tehdidi:
İlk dalga batı Avrupa'daki toprağın nemini zaten tamamen kuruttu ve fırınladı. Şimdi nem kalmadığı için, bu yeni gelen kubbe yüzeyi çok daha hızlı ve acımasızca ısıtacaktır. Her gün bir önceki günden daha sıcak olacak!

🌡️ Modellerdeki Yeni Max Sıcaklık ve Rekor Beklentileri (7-10 Temmuz başlaması bekleniyor )

🇪🇸🇵🇹 İspanya & Portekiz: Endülüs ve iç kesimlerde termometrelerin 44°C - 46°C bandına vurarak mutlak Temmuz rekorlarını tazelemesi bekleniyor.

🇫🇷 Fransa: Yeni kubbenin merkez üssü yine güneybatı Fransa. Yüzeyde 43°C - 45°C arası değerlerle yerel rekorlar tekrar sallantıda!

🇩🇪🇧🇪 Almanya & Benelüks: Isı adası etkisiyle iç kesimlerde sıcaklıklar 38°C - 41°C aralığına tırmanarak Temmuz ekstrem istatistiklerini yenileyebilir.

🇬🇧 İngiltere (Güney): Londra ve güney kıyılarında adayı felç edecek 34°C - 37°C arası bunaltıcı pikler öngörülüyor.

⚠️ Uluslararası Alarm: Günlerce yerinden kıpırdamayacak bu blokaj; Fransa, İspanya ve İtalya genelinde orman yangını riskini maksimuma çıkarırken, nehir su seviyelerini düşürecek ve enerji şebekelerini ciddi şekilde zorlayacak.
İlk dalga bir şok etkisiydi, ikincisi ise tam bir yıpratma savaşına dönecek. Avrupa küresel ortalamanın iki katı hızla kavrulurken, Temmuz ayı meteoroloji tarihine geçmeye hazırlanıyor!

(Météo-France ve küresel tahmin merkezleri (ECMWF & GFS) bu senaryo üzerinde %70'in üzerinde bir mutabakat sağlıyor. Uzmanlar, haziran sıcağıyla nemini tamamen kaybetmiş Avrupa topraklarının bu ikinci darbeyle çok daha kolay rekor kırabileceği konusunda hemfikir!")

Bu veriler yeni. Uzun vadeli hava tahminleri yüzde yüz garanti değil , yaklaşmakta olan sıcaklık taarruzunun bozulup bozulmayacağını veya çok daha büyük bir felakete mi neden olacağını gün gün modellerin güncellenmesiyle göreceğiz . Dilerim ki bu yeni kubbe bozularak normallerde seyredecek sıcaklıklar yaşansın 🙏

#HeatDome #Heatwave #ECMWF #ClimateCrisis #ExtremeWeather #EuropeWeather

[Dr Jérôme BARRIERE, MD. @barriere_dr]

Encore un best of de @FabrizioBucella

[ESA Webb Telescope @ESA_Webb]

This is Messier 82 (M82), better known as the Cigar Galaxy.

M82 has been observed many times before, including by @Hubble_Space but its details have until now been shrouded by dust.

After 65 hours of observations with the #NIRCam on Webb, which can pierce through this dust, M82 has been revealed in all its sparkling glory. There are approximately 16.5 million stars visible in this image! 🤯

Read more: https://t.co/zXgEJKr9rS

#WebbSeesFarther

📷 @NASA , @ESA , @csa_asc , A. Smercina (STScI), T. Williams (University of Manchester), A. Pagan (STScI), N. Bartmann (ESA/Webb) 3/3
🎶 Stellardrone - Twilight

[The Touchline | 𝐓 @TouchlineX]

🚨🤍 𝗡𝗘𝗪: Yan Diomande emotional letter to his late sister:

"Dear Roxane,

Remember when somebody bought me a fake United jersey, and I wrote Ronaldo 7 on the back with the black marker?"

"We didn’t know rich or poor. We just knew happiness."

"Remember 25 people sleeping in one house back in Abidjan? Mum wanted to watch her soap operas. Everyone else wanted to watch movies. Remember how I always used to fake like I was asleep and then go into the TV room after midnight? I’d put the TV on real low. Just like 2 volume bars. I’d watch football in the dark and dream."

"Remember when the adults saw me playing football in the dirt and nicknamed me “Roberto Carlos” because of how hard I would shoot? And remember how I was secretly so mad about it, because CR7 was my idol?"

"Remember when I went to play so far from home? I was 9 years old. Inter Foot Sud Comoé, all the way near the Ghana border. Just a little boy on his own. I don’t know if I ever told you this story, but me and the other kids used to go into the village and steal potatoes because we were so hungry. We did a “bank heist.” Two kids distracting the shop owner, and 18 other kids running out with two potatoes. They weren’t even good. But they tasted amazing. Hahahah. It’s still my favorite thing to eat. Boiled potatoes with some oil. It reminds me of those times."

"Remember when I got my first real football boots, and I used to sleep with them? Growing up, I always played in those white plastic sandals. Even when I go back home now, I still play in them. It’s our tradition."

"Remember when I would come back home, and you would tell my friends from the neighborhood, “Why did you stop training? Yan is not going to buy you cars. You have to keep working."

"You were 10 years old, and already my agent."

"Remember how we used to sit and dream about moving to France? How we were going to go shopping and get our own apartment and I was going to be a rich footballer with cars and a big house, and you wouldn’t have to worry about nothing. You were the one who always believed that I could be the next Cristiano, when everybody else laughed."

"Remember when I moved to America for high school at 15, and I was so homesick? I didn’t know what anybody was saying for months. They sat me next to a French kid, and he tried to translate everything the teacher was saying. Remember when I called you, saying, “You won’t believe it, the kids here argue with teachers."

"Back home, you know we wouldn’t even dare to blink at our elders."

"Remember when I couldn’t believe the kids were smoking after school? You used to say it sounded like I was in an American TV show."

"Remember when they took me on trial at Bournemouth? At Chelsea, Rangers, Olympiacos, Crystal Palace? Eze and Olise even came up to me after one training and said, “Yo kid, you’re really good.”"

"But they still didn’t sign me."

"Even the B teams in the MLS didn’t want me. I didn’t even know why. They never gave me a reason. The adults handled everything. They just kept taking me all around Europe, and everybody kept saying no."

"My visa was up. My dream was over. They sent me back to Africa, and we cried together."

"You were the one who never stopped believing. A few weeks later, I signed for Leganés and we cried different tears."

"That was back when I used to have emotions. Now, I don’t feel anything. It’s like I’m not even human. Since you died, I’m just blank."

"I don’t even think I shed a tear the day they told me that you were gone. I was just in shock."

"It was a few weeks after I made my debut for Leganés. Who makes their debut at 18 against Real Madrid? It was too crazy. It was a dream."

"And then it was a nightmare. Someone kept calling me from back home. I was annoyed. I didn’t understand why they kept calling me."

"I picked up, and they didn’t even soften it. You know how it is back home. No emotions. Just……..

“Your sister is gone.”
“What?”
“She died.”
“What are you talking about?”
“Somebody put something in her drink at a party, and she never woke up. She is gone.”

"You were 15."

"15."

"I never got any answers. I don’t know if I want to know why. Maybe it was jealousy. Maybe it’s just something that happens in our country. Maybe I could have protected you. I don’t know."

"I try to trust God’s plan. It’s all I can do. I don’t try to forget, because I know I won’t forget. All I can do is use the pain to work harder, and to do everything we dreamed about."

"I wrote this because I can’t speak about it. I wrote this because I want you to know that I will make sure that you live on. I will make sure that everybody knows your name. The whole world."

"Everything I do on a football pitch, it’s for you."

"So much has happened since I last saw you…… You would not even believe it. I don’t know if I believe it."

"You know what’s crazy? After my debut against Madrid, I actually swapped shirts with Mbappé. Remember when we used to watch him on TV, and you’d say, “Mbappé? Yeah, he’s good. But my brother is better.”

"I was wrong about one thing. I don’t want to be rich. I see what it does to people, even to family. When I was at Leganés, everything I was earning, I was sending home. It got to the point where I didn’t even want money anymore. It was just a burden. They never stopped asking. I guess they thought I was a millionaire already. I didn’t even have an apartment. I was living at the training ground in a room with no TV. Just football and sleep, football and sleep."

"I didn’t want a big house. I didn’t want cars. I just wanted to put everything into football. Everything to show the world that my sister was right……."

"Ha…. you will think this is funny. When I moved to play at RB Leipzig, I was always late. Well, not late. But I was on time, which in Germany means you’re very late."

"So you already know what I did next. I started arriving 90 minutes early to everything. I was so early all the time that the guys started calling me “The German.”"

"I always have to overdo everything. I have zero chill. You always said that."

"The pitch is the only place that I feel at home anymore. It’s the place where I feel calm, and I can speak to you. I just wish you were still here so I could tell you….. We did it."

"Everything you said came true."

"We’re leaving for the World Cup tomorrow. For real. Your brother is going to play for Côte d'Ivoire, like Drogba, like Yaya, like Gervinho."

"I don’t even look at it like a game. I look at it like a stage. This is my chance to show the whole world what you saw in me. Every time I score, I’ll make sure everybody knows your name. I’ll make sure they don’t forget you."

"You always said that I could be better than Cristiano. If I see him there, I’ll tell him hello for you."

"I’m going to do what you predicted, I swear. Before I even had real boots, you were telling everybody, “My brother is going to be the greatest in the world.”

"I will prove that you were right, or I will die trying... Your brother, Yan."

— @PlayersTribune

[Regan MARKLE @TheReganAngle]

Ah, merde..... Bernadette

[Matteo Maillard @matteomaillard]

Le #DepartmentOfWar américain qui tente une infiltration discrète sur le chat group du #JNIM et se fait virer aussi sec 😅

[BriceHaziza @_NotreEspace_]

😶🌌La barre stellaire qui ne devrait pas exister : le JWST a mis en évidence l'existence d'une barre d'étoiles, comme celle que possède la Voie lactée en son centre, mais celle-ci est à 20 000 années-lumière du bulbe central de GN20, sa galaxie.
Une anomalie totale...
1/3

[75 Secondes 🗞️ @75secondes]

⚽️ On n’oublie pas la promesse de Mohamed Henni « wallah je me fais tatouer le logo du psg »

[Instant Foot ⚽️ @lnstantFoot]

INCROYABLE ! La victoire finale du PSG a même été célébrée par... des supporters du FC Lorient ! 😳❤️💙

Ces images ont été filmées lors des 100 ans du club, fêtés ce soir au Moustoir. 🎂

[ParisTeam @Paristeamfr]

Sans préparation, avec une semaine de vacances seulement, plongés dans le groupe de la mort, passés par les barrages…

Et pourtant, nous voilà au sommet. 🔴🔵🏆

On a remporté la Super Coupe d’Europe aux tirs au but, on a eu la Coupe intercontinentale aux tirs au but,
On a arraché le Trophée des Champions face à l’OM aux tirs au but.
On est devenus Champions de France devant une très belle équipe de Lens.
Et surtout… on a réalisé le BACK TO BACK en Ligue des Champions ! ⭐️⭐️

Une saison de guerriers. Une saison de caractère. Une saison où ce groupe n’a jamais cessé d’y croire.

Légendaire. Historique. Immortel.

Nous sommes le PSG. 🔴🔵🔥🔥 #TeamPSG

[Paris Saint-Germain @PSG_inside]

Une fois c'est historique, deux fois c'est légendaire.

[PSGINSIDE-ACTUS @PSGInside_Actu]

Cette vidéo m'a donné des frissons. La pression commence à monter... 🔴🔵

[Groupe Jean Hénaff @JeanHenaffSA]

En double cliquetant sur votre appareil mobile, vous pouvez apprécier la qualité de cette photo en plein écran 🤩
Entre #Alien et #Kubrick, @Soph_astro est magnifique ✨️

[Seen on the Internet @FunnySight]

😂😂

[Mystere Météo @MystereMeteo]

🧵 THREAD - El Niño Godzilla 2026 : ce qui arrive pourrait être le pire événement climatique depuis 150 ans. Un fil pour comprendre pourquoi. 🌊🔥

🔁 RT si tu veux que les gens comprennent ce qui se prépare.

[Adenot Sophie @Soph_astro]

Jour 087, orbite 1350 — Factuellement, une étoile filante est un météore : un petit fragment de roche ou de poussière venu de l’espace, qui se désintègre dans l’atmosphère terrestre après avoir parcouru des distances astronomiques 😉. Mais pour celles et ceux qui ont des rêves plein la tête, voir une étoile filante est souvent l’occasion de faire un vœu… juste au cas où !

Sur son orbite, la Terre traverse régulièrement des nuages de poussières et de petits débris laissés derrière eux par des comètes ☄️. Lorsque certains de ces fragments entrent en contact avec l’atmosphère, ils s’échauffent et laissent apparaître une traînée plus ou moins visible, dont la couleur dépend à la fois de la composition chimique du fragment et de l’altitude à laquelle la désintégration se produit. On appelle « bolides » les météores les plus lumineux, ceux qui semblent littéralement déchirer le ciel. Les rares fragments qui atteignent le sol prennent le nom de météorites.

La pluie d’étoiles filantes des Lyrides avait lieu du 16 au 25 avril, et nous avons eu la chance d’en observer depuis la Station… @JulienLooten propose de son côté une étoile filante des Perséides, une pluie souvent spectaculaire et visible chaque année au mois d’août.

💫 Deux origines différentes, mais surtout deux points de vue très différents : alors que depuis la Terre il faut lever les yeux vers le ciel, depuis la Station, nous regardons vers la Terre. Un grand merci à Julien pour ce partage ! 🙏

📸 Crédits images:
Depuis l'orbite: @NASA / @esa – S. Adenot
Depuis le sol: @JulienLooten

#εpsilon • @ESA_EO • @esaspaceflight • @Space_Station • @ESA_fr • @CNES