Toggle light / dark theme

High-resolution map shows dark matter’s gravity pulled normal matter into galaxies

Scientists have created the highest resolution map of the dark matter that threads through the universe—showing its influence on the formation of stars, galaxies and planets.

The research, including astronomers from Durham University, UK, tells us more about how this invisible substance helped pull ordinary matter into galaxies like the Milky Way and planets like Earth.

The findings, using new data from NASA’s James Webb Space Telescope (Webb), are published in the journal Nature Astronomy.

Is Betelgeuse about to explode into a supernova? Astronomers finally have an answer

Between late 2019 and early 2020, the red supergiant Betelgeuse showed signs of weakening that led many to wonder whether its long-expected explosion into a supernova just a few hundred light-years from the Solar System might be imminent. Other ideas were put forward, and more recently, fresh data have shed new light on the question.

It’s well established that stars with masses greater than eight to ten times that of the Sun won’t end up as white dwarfs like our Sun will. Instead, they explode as type II supernovae, leaving behind a neutron star and sometimes, if the mass is high enough, a stellar black hole.

Located roughly 650 light-years from Earth in the constellation Orion, Betelgeuse is one of these stars, and it’s clearly nearing the end of its life. It sits in the red supergiant phase, outside the main sequence on the Hertzsprung–Russell diagram.

Can Science Explain Everything? — Sean Carroll

Get all sides of every story and be better informed at https://ground.news/AlexOC — subscribe for 40% off unlimited access.

Come to my UK tour: https://www.livenation.co.uk/alex-o-c

For early, ad-free access to videos, and to support the channel, subscribe to my Substack: https://www.alexoconnor.com.

To donate to my PayPal (thank you): http://www.paypal.me/cosmicskeptic.

VIDEO NOTES

Sean Carroll is an American theoretical physicist who specializes in quantum mechanics, cosmology, and the philosophy of science.

A Study Appears to Stunningly Contradict Newton and Einstein’s Theory of Gravity

“This systematic deviation agrees with the boost factor that the AQUAL theory predicts for kinematic accelerations in circular orbits under the Galactic external field,” Chae says in the paper.

Similar to how the Newton-Einstein theory relies on the ever-elusive particle known as dark matter, MOND contains its own limitations and challenges. Chae’s study appears to be a big +1 in the pro column for Modified Newtonian Dynamics, but the theory is still just that—a theory. It will need much more observational support before it upends our modern understanding of gravity and the universe we inhabit.

Dark energy survey scientists release analysis of all six years of survey data

The Dark Energy Survey Collaboration collected information on hundreds of millions of galaxies across the universe using the U.S. Department of Energy-fabricated Dark Energy Camera, mounted on the U.S. National Science Foundation Víctor M. Blanco 4-meter Telescope at CTIO, a program of NSF NOIRLab. Their completed analysis combines all six years of data for the first time and yields constraints on the universe’s expansion history that are twice as tight as past analyses.

The Dark Energy Survey (DES) is an international, collaborative effort to map hundreds of millions of galaxies, detect thousands of supernovae, and find patterns of cosmic structure that will help reveal the nature of the mysterious dark energy that is accelerating the expansion of our universe.

From 2013 to 2019, the DES Collaboration carried out a deep, wide-area survey of the sky using the 570-megapixel DOE-fabricated Dark Energy Camera (DECam), mounted on the NSF Víctor M. Blanco 4-meter Telescope at NSF Cerro Tololo Inter-American Observatory (CTIO) in Chile. For 758 nights over six years, the DES Collaboration recorded information from 669 million galaxies that are billions of light-years from Earth, covering an eighth of the sky.

ATLAS confirms collective nature of quark soup’s radial expansion

Scientists analyzing data from heavy ion collisions at the Large Hadron Collider (LHC)—the world’s most powerful particle collider, located at CERN, the European Organization for Nuclear Research—have new evidence that a pattern of “flow” observed in particles streaming from these collisions reflects those particles’ collective behavior. The measurements reveal how the distribution of particles is driven by pressure gradients generated by the extreme conditions in these collisions, which mimic what the universe was like just after the Big Bang.

The research is described in a paper published in Physical Review Letters by the ATLAS Collaboration at the LHC. Scientists from the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory and Stony Brook University played leading roles in the analysis.

The international team used data from the LHC’s ATLAS experiment to analyze how particles flow outward in radial directions when two beams of lead ions—lead atoms stripped of their electrons—collide after circulating around the 17-mile circumference of the LHC at close to the speed of light. The findings offer new insight into the nature of the hot, dense matter generated in these collisions—with temperatures more than 250,000 times hotter than the sun’s core. These extreme conditions essentially melt the protons and neutrons that make up the colliding ions, setting free their innermost building blocks, quarks and gluons, to create a quark-gluon plasma (QGP).

J. Richard Gott — Why Did Our Universe Begin?

Make a donation to Closer To Truth to help us continue exploring the world’s deepest questions without the need for paywalls: https://shorturl.at/OnyRq.

That the universe began seems astonishing. What brought it about? What forces were involved? How did the laws of nature generate the vast expanse of billions of galaxies of billions of stars and planets in the structures that we see today? What new physics was involved? What more must we learn?

Free access to Closer to Truth’s library of 5,000 videos: http://bit.ly/376lkKN

Watch more interviews on how our universe began: https://bit.ly/3qmbWPu.

John Richard Gott III is a Professor of Astrophysical Sciences at Princeton University who is noted for his contributions to cosmology and general relativity.

Register for free at CTT.com for subscriber-only exclusives: http://bit.ly/2GXmFsP

Do We Actually Live Inside a Black Hole? Let’s Explore the Evidence

Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath (Unreleased videos, extra footage, DMs, no ads)
Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath.
Get a Wonderful Person Tee: https://teespring.com/stores/whatdamath.
More cool designs are on Amazon: https://amzn.to/3QFIrFX

Hello and welcome! My name is Anton and in this video, we will talk about the claims that we live inside a black hole.
Links:
https://en.wikipedia.org/wiki/Black_hole_cosmology.
https://arxiv.org/pdf/2505.23877
https://arxiv.org/pdf/1910.10819v2

#blackhole #unvierse #astronomy.

0:00 Is universe basically a black hole?
1:10 Defining a black hole and the universe.
2:30 How would universe end up inside a black hole?
5:00 Explanations for how this may work.
6:35 Rotation and angular momentum.
8:05 What this could explain.
9:35 Counter evidence and why it’s probably not a black hole.
13:00 Rotation explanation using the cosmic web.
14:00 Conclusions.

Enjoy and please subscribe.

Bitcoin/Ethereum to spare? Donate them here to help this channel grow!
bc1qnkl3nk0zt7w0xzrgur9pnkcduj7a3xxllcn7d4
or ETH: 0x60f088B10b03115405d313f964BeA93eF0Bd3DbF

Thank you to all Patreon supporters of this channel.

/* */