Researchers discovered a closely orbiting pair of supermassive black holes in Markarian 501 by tracking two jets of particles. The binary system could merge within 100 years and may produce detectable gravitational waves.
NASA’s Fermi telescope may have finally uncovered the magnetic powerhouse behind the universe’s brightest supernovae.
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Hello and welcome! My name is Anton and in this video, we will talk about crystallization of spacetime.
Links:
https://journals.aps.org/prl/pdf/10.1…
#science #physics #spacetime.
0:00 Can spacetime crystallize?
0:35 So what is this then?
1:55 Let’s define the main terms and phenomena: spacetime.
2:30 Crystals.
2:55 Spacetime crystal.
3:50 Previous challenges and propositions.
5:10 Main achievement in the study.
6:10 What does any of this mean for us?
7:10 Solving singularity and quantum gravity?
8:05 Explaining dark matter?
8:45 JWST observations.
9:28 Any proof? Gravitational waves!
11:55 Conclusions.
Enjoy and please subscribe.
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If Scientists Already PROVED We’re In A Simulation?
Bell’s theorem. Maldacena’s holographic proof. Wheeler’s participatory universe.
Three independent bodies of peer-reviewed physics — all pointing at the same unsettling answer.
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Bell’s theorem. Maldacena’s holographic proof. Wheeler’s participatory universe.
Three independent bodies of peer-reviewed physics — all pointing at the same unsettling answer.
What if the simulation hypothesis isn’t a thought experiment? What if the physics we already have — quantum entanglement, the holographic principle, the measurement problem — is the proof?
In this video, Harvard theoretical physicist Lisa Randall walks through the three experiments and mathematical proofs that, taken together, describe a universe that functions in every measurable way like a simulation. Not as metaphor. As structure.
We cover:
→ Alain Aspect’s 1982 Bell test experiment and what it actually proved about local reality.
→ The Bekenstein-Hawking holographic bound — why information scales with surface area, not volume.
→ Maldacena’s AdS/CFT correspondence — the proof that a 3D universe is dual to a 2D information system.
→ Wheeler’s delayed choice experiment and the participatory universe.
→ What the fine-tuning problem looks like inside a simulation framework.
→ Why you — the observer — are not peripheral to the physics. You are part of the mechanism.
This is Episode 1 of The Proof Series — a weekly deep-dive into peer-reviewed science that challenges everything you think you know about reality.
New episode every Thursday.
— Lisa Randall is a theoretical physicist and professor at Harvard University, author of Warped Passages and Dark Matter and the Dinosaurs, and one of the most cited physicists alive.
#SimulationTheory #QuantumPhysics #HolographicUniverse.
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3. TIMESTAMPS / CHAPTERS
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00:00 — The proof nobody is talking about.
01:10 — What \
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Scientists say that they’ve just detected a massive cloud of gas some 3 billion lightyears in diameter, floating in space roughly 7 billion light years away from us. This is pretty cool, but the problem is that our current models of the universe say that it (and other massive structures like it) just shouldn’t exist. Let’s take a look.
Paper: https://arxiv.org/abs/2604.
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Astronomers monitoring a nearby active galaxy for six years have watched its supermassive black hole dramatically wake up, brightening by a factor of 10 across ultraviolet and X-ray wavelengths. The paper outlining the study was posted to the preprint server arXiv on May 18.
In active galactic nuclei (AGN), material spiraling into the central black hole releases enormous amounts of energy. The accretion disk—a swirling ring of hot gas—radiates this energy primarily in optical and ultraviolet (UV) light. Additionally, a separate region of extremely hot plasma sits above the disk. It is called the corona, which is responsible for the X-ray emission.
Understanding how these two components relate to each other and how they evolve as a black hole’s feeding rate changes remains an open problem.
Astronomers may have discovered one of the clearest examples yet of a rare “pair-instability” supernova. It is a catastrophic explosion thought to completely destroy some of the most massive stars in the universe, leaving behind no remnant. The paper outlining the properties of this rare explosion was posted to the arXiv preprint server on May 15.
The event, SN 2023vbw, was first detected by the Zwicky Transient Facility in October 2023 in the outskirts of a small, metal-poor dwarf galaxy about 1.3 billion light-years away. It was tentatively classified as a Type II supernova—the kind produced when a massive star exhausts its nuclear fuel, collapses under gravity, and explodes. But several of its properties refused to fit that picture.
Astronomers using the James Webb Space Telescope (JWST) have discovered a stellar bar in GN20, a massive galaxy seen just 1.5 billion years after the Big Bang. The new paper was submitted to the preprint server arXiv on May 14.
Stellar bars are elongated arrangements of stars that cut across the center of a galaxy, rotating as a single rigid unit. As they spin, they act like a funnel and pull gas inward toward the galaxy’s nucleus, which can trigger intense star formation, feed the central black hole, and build up a dense core. In the nearby universe, bars are common. Even the Milky Way hosts one.
But formation of a stellar bar is thought to be slow, taking place over billions of years. Early galaxies were also significantly gas-rich, and gas was thought to suppress or delay bar formation. Therefore, when JWST discovered stellar bars within the first 2 billion years after the Big Bang, it challenged expectations from the standard model.
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In the Big Bang Theory, the cosmic microwave background — microwave-range radiation that floats through the entire universe at a steady 2.7 Kelvin — is evidence that a hot explosion of plasma kicked off the creation of the universe. But according to a new paper, the microwave radiation came from early galaxies instead. Does this mean that the big bang theory is wrong? Let’s take a look.
Paper: https://www.sciencedirect.com/science… video comes with a quiz which you can take here: https://quizwithit.com/start_thequiz/.… 🤓 Check out my new quiz app ➜ http://quizwithit.com/ 💌 Support me on Donorbox ➜ https://donorbox.org/swtg 📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/ 👉 Transcript with links to references on Patreon ➜ / sabine 📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle… 👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl… 🔗 Join this channel to get access to perks ➜
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This video comes with a quiz which you can take here: https://quizwithit.com/start_thequiz/.…
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👉 Transcript with links to references on Patreon ➜ / sabine.
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👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl…
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#science #sciencenews #physics #bigbang