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Category: physics – Page 9

Scientists have uncovered “Quipu,” the largest known galactic structure, stretching 1.4 billion light-years. This discovery reshapes cosmic mapping and affects key measurements of the universe’s expansion.

A team of scientists has identified the largest cosmic superstructure ever reliably measured. The discovery was made while mapping the nearby universe using galaxy clusters detected in the ROSAT X-ray satellite’s sky survey. Spanning approximately 1.4 billion light-years, this structure — primarily composed of dark matter — is the largest known formation in the universe to date. The research was led by scientists from the Max Planck Institute for Extraterrestrial Physics and the Max Planck Institute for Physics, in collaboration with colleagues from Spain and South Africa.

A Vastly Structured Universe

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UCLA physicists have developed a new thin film that uses far less of the rare thorium-229 while also being significantly less radioactive, making it a safer and more practical alternative for atomic clocks. Atomic clocks using thorium-229 nuclei excited by laser beams could provide the most pre.

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Discover the groundbreaking physics behind skyhooks, rotovators, and space ladders, and how they could revolutionize space travel in the near future.

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Credits:
Skyhooks, Rotovators & Space Ladders.
Episode 488b; March 2, 2025
Written, Produced & Narrated by: Isaac Arthur.
Graphics: Jarred Eagley, Katie Byrne, Phil Swan, Sergio Botero.
Select imagery/video supplied by Getty Images.
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator.
Phase Shift, \

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Nobel Laureate Andrea Ghez joins Brian Greene to explore her decade’s long pursuit of the supermassive black hole at the center of the Milky Way Galaxy.

This program is part of the Big Ideas series, supported by the John Templeton Foundation.

Participant: Andrea Ghez.
Moderator: Brian Greene.

00:00 Introduction.
00:46 The Discovery of a Supermassive Black Hole.
01:50 Early Influences and Childhood Curiosity.
03:01 The Impact of the Moon Landing.
04:16 From Math to Physics.
05:42 Women in Science.
07:30 Falling in Love with Astronomy and Telescopes.
09:01 Supermassive vs. Stellar Black Holes.
12:05 Overcoming Doubts in Scientific Research.
15:33 The Search for the Black Hole in the Milky Way.
18:00 Developing Techniques for Infrared Astronomy.
21:12 The Long Journey to a Scientific Breakthrough.
24:45 The Moment of Discovery.
30:20 The Future of Black Hole Research.
32:45 Closing Thoughts and Advice for Aspiring Scientists.
35:10 Unlocking the Mysteries of the Universe.
41:30 Q&A

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A team led by researchers at UNC-Chapel Hill has made an extraordinary discovery that is reshaping our understanding of bubbles and their movement. Imagine tiny air bubbles inside a liquid-filled container. When the container is shaken up and down, these bubbles exhibit an unexpected, rhythmic “galloping” motion—bouncing like playful horses and moving horizontally, despite the vertical shaking. This counterintuitive phenomenon, revealed in a new study, has significant technological implications, from improving surface cleaning and heat transfer in microchips to advancing space applications.

These galloping bubbles are already drawing significant attention. Their impact on fluid dynamics was recently recognized with an award for their video entry at the latest Gallery of Fluid Motion, organized by the American Physical Society.

“Our research not only answers a fundamental scientific question but also inspires curiosity and exploration of the fascinating, unseen world of fluid motion,” said Pedro Sáenz, principal investigator and professor of applied mathematics at UNC-Chapel Hill. “After all, the smallest things can sometimes lead to the biggest changes.”

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For the first time, astronomers have imaged dozens of belts around nearby stars where comets and tiny pebbles within them are orbiting.

This result reveals regions around 74 stars spanning a wide range of ages—from those recently formed to others billions of years old—showing how comets play a role in the formation of stars and planetary systems. The study is published in the journal Astronomy & Astrophysics.

To find evidence for comets outside our solar system (called “exocomets”), astronomers turned to two facilities that detect particular bands of radio waves. Because of the size of the dust and rocks in these belts, this type of light is particularly good at finding and imaging these structures.

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Kaiming He, a professor in the Department of Electrical Engineering and Computer Science, believes AI can create a common language that lowers barriers between scientific fields and fosters collaboration across scientific disciplines.

“There is no way I could ever understand high-energy physics, chemistry, or the frontier of biology research, but now we are seeing something that can help us to break these walls,” said He.

MIT Associate Professor Kaiming He discusses the role of AI in interdisciplinary collaborations, connecting basic science to artificial intelligence, machine learning, and neural networks.

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Is the key to understanding our universe hidden in its mirror image? Are the answers cosmologists seek much simpler than we think? And can we explain the origin of the universe without inflation?

Here today to share his bold new theory is the renowned physicist and cosmologist Neil Turok. Neil, who specializes in mathematical and early-universe physics, is the Higgs Chair of Theoretical Physics at the University of Edinburgh and Director Emeritus of the Perimeter Institute for Theoretical Physics. Recently, he’s been getting a lot of attention for proposing a simpler, more testable cosmological model that replaces inflation with a CPT-symmetric Mirror Universe, explaining dark matter, cosmic flatness, and density variations without adding unnecessary complexity.

Join us as we explore this provocative new theory in depth!

👉 ‘Cosmic Inflation’: did the early cosmos balloon in size? A mirror universe going backwards in time may be a simpler explanation by Neil Turok: https://shorturl.at/jr8kd.

Continue reading “Is Inflation DEAD? Neil Turok’s Startling Mirror Universe Theory” | >

“The Ouroboros Code” explores the intersection of science and spirituality through the lens of digital alchemy and self-simulation. Authored by Antonin Tuynman, the book presents a philosophical framework called “The Transcendental Metaphysics of Pancomputational Panpsychism” exploring how consciousness may be the fundamental ground of existence and the universe a self-modifying code. Tuynman investigates topics like the nature of intelligence, the limits of computation, and the possibility of artificial general intelligence. The book draws on concepts from physics, information theory, mathematics, and various spiritual traditions, aiming to bridge the gap between objective and subjective realities. It builds upon the author’s previous works and incorporates insights from various scientists and thinkers. Ultimately, the book seeks to understand how the universe, through a recursive process, generates and experiences itself. *Available as a Kindle eBook, paperback, and Audible audiobook: https://www.amazon.com/Ouroboros-Code?tag=lifeboatfound-20… #SelfSimulation #Pancomputationalism #DigitalPhysics #ComputationalPhysics

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