Uploaded June 2026 | Updated September 2026, 2 weeks ago
For decades, we assumed galaxies came first.
Stars form, collapse, and slowly build black holes over billions of years. But the James Webb Space Telescope just found a black hole so massive, so ancient, and so isolated that it couldn’t have grown that way. It was born big. And it may have predated the galaxy around it entirely.
The clue was in how the gas moves around it. Perfect, elegant Keplerian motion, the same way planets orbit our Sun, telling us that almost all the mass in that galaxy is concentrated in the black hole itself. In nearby galaxies, black holes make up a tiny fraction of the total mass. This one accounts for two thirds of it.
Scientists believe this might not be a rare exception. There could be thousands of these out there, quietly challenging everything we thought we knew about the beginning of the Universe.
📹 European Space Agency (ESA)
#ESA #Space #Webb
For decades, we assumed galaxies came first.
Stars form, collapse, and slowly build black holes over billions of years. But the James Webb Space Telescope just found a black hole so massive, so ancient, and so isolated that it couldn’t have grown that way. It was born big. And it may have predated the galaxy around it entirely.
The clue was in how the gas moves around it. Perfect, elegant Keplerian motion, the same way planets orbit our Sun, telling us that almost all the mass in that galaxy is concentrated in the black hole itself. In nearby galaxies, black holes make up a tiny fraction of the total mass. This one accounts for two thirds of it.
Scientists believe this might not be a rare exception. There could be thousands of these out there, quietly challenging everything we thought we knew about the beginning of the Universe.
📹 European Space Agency (ESA)
#ESA #Space #Webb
![Why astronauts work out in space🏋️♀️ (Part 1) [French with English subtitles]](https://i.ytimg.com/vi/vc32khjrG3U/mqdefault.jpg "Why astronauts work out in space🏋️♀️ (Part 1) [French with English subtitles]
Our astronaut Sophie Adenot shared this video on her social media channels with the caption:
[EN] Day 128, orbit 1981 — Sunday morning science with Sophie, episode 10: sports science, resistive strength training and lifting weights in weightlessness, part 1.
[FR] Jour 128, orbite 1981 – La science du dimanche matin avec Sophie, épisode 10 : science sportive, renforcement musculaire et soulever des poids là où rien ne pèse, partie 1.
📹 ESA/NASA
#ESA #Astronaut #ISS")
![Orbital mechanics and understanding the high beta angle period 🌍 [French with English subtitles]](https://i.ytimg.com/vi/w5SMP4hNhxA/mqdefault.jpg "Orbital mechanics and understanding the high beta angle period 🌍 [French with English subtitles]
Our astronaut Sophie Adenot shared this video on her social media channels with the caption:
[EN] Day 100, orbit 1547 — Sunday morning science with Sophie, episode 8: orbital mechanics and understanding the high beta angle period…
This high beta period happens about 4 times per year and lasts 7 to 10 days each time. I recorded this two weeks ago already, so we’re back to alternating between 45 minutes of daylight and 45 minutes of night!
[FR] Jour 100, orbite 1547 – La science du dimanche matin avec Sophie, épisode 8 : comprendre ce qu’est la période d’angle bêta élevé…
Cette période d’angle bêta élevé se produit environ 4 fois par an, et dure à chaque fois de 7 à 10 jours. J’ai enregistré ça il y a déjà deux semaines, donc nous sommes de retour à une alternance de 45 minutes de jour et 45 minutes de nuit !
📹 ESA/NASA
#ESA #Astronaut #ISS")
