* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Wednesday, June 4, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Author Richard Russo Will Speak At Sandwich Town Hall – CapeNews.net

    Join Us for an Inspiring Evening with Author Richard Russo at Sandwich Town Hall!

    Entertainment Partners Acquires CASHét, Digital Payments Vendor for Productions – Variety

    Entertainment Partners Acquires CASHét, Digital Payments Vendor for Productions – Variety

    Salem’s Harborwalk Garden Cultivates Community with Entertainment, Food, and Events – 105.7 WROR

    Discover the Vibrant Community Spirit at Salem’s Harborwalk Garden: A Hub for Entertainment, Food, and Fun!

    Entertainment-Focused Narrative and Culture Change Practice – New America

    Transforming Culture Through Engaging Entertainment Narratives

    Rising stars: Young classical musicians surging on social media – Yahoo

    Meet the Next Generation of Classical Music Sensations Making Waves on Social Media!

    Devin Harjes Dies: ‘Manifest’ & ‘Boardwalk Empire’ Actor Was 41 – WyomingNews.com

    Tragic Loss: Devin Harjes, Star of ‘Manifest’ and ‘Boardwalk Empire,’ Passes Away at 41

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Inside the tedious effort to tally AI’s energy appetite – MIT Technology Review

    Inside the tedious effort to tally AI’s energy appetite – MIT Technology Review

    Finland Set to Lead EU Quantum Technology Defense Project – IoT World Today

    Finland Set to Lead EU Quantum Technology Defense Project – IoT World Today

    AI for lawyers: Win back your time using technology – nationaljurist.com

    Reclaim Your Time: How AI is Transforming the Legal Profession

    Prosecutors accuse men of exporting U.S. military technology to China – Milwaukee Journal Sentinel

    Men Charged with Illegally Exporting U.S. Military Technology to China

    ROLAND’S NEW WIRELESS TRIGGER TECHNOLOGY, PORTER & DAVIES ON TOUR, NEW 64 AUDIO ASPIRE UNIVERSAL IEM MODELS, WAVES FREE PLUGIN PACK – Modern Drummer Magazine

    ROLAND’S NEW WIRELESS TRIGGER TECHNOLOGY, PORTER & DAVIES ON TOUR, NEW 64 AUDIO ASPIRE UNIVERSAL IEM MODELS, WAVES FREE PLUGIN PACK – Modern Drummer Magazine

    This giant microwave may change the future of war – MIT Technology Review

    Revolutionizing Warfare: The Impact of a Game-Changing Giant Microwave

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Author Richard Russo Will Speak At Sandwich Town Hall – CapeNews.net

    Join Us for an Inspiring Evening with Author Richard Russo at Sandwich Town Hall!

    Entertainment Partners Acquires CASHét, Digital Payments Vendor for Productions – Variety

    Entertainment Partners Acquires CASHét, Digital Payments Vendor for Productions – Variety

    Salem’s Harborwalk Garden Cultivates Community with Entertainment, Food, and Events – 105.7 WROR

    Discover the Vibrant Community Spirit at Salem’s Harborwalk Garden: A Hub for Entertainment, Food, and Fun!

    Entertainment-Focused Narrative and Culture Change Practice – New America

    Transforming Culture Through Engaging Entertainment Narratives

    Rising stars: Young classical musicians surging on social media – Yahoo

    Meet the Next Generation of Classical Music Sensations Making Waves on Social Media!

    Devin Harjes Dies: ‘Manifest’ & ‘Boardwalk Empire’ Actor Was 41 – WyomingNews.com

    Tragic Loss: Devin Harjes, Star of ‘Manifest’ and ‘Boardwalk Empire,’ Passes Away at 41

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Inside the tedious effort to tally AI’s energy appetite – MIT Technology Review

    Inside the tedious effort to tally AI’s energy appetite – MIT Technology Review

    Finland Set to Lead EU Quantum Technology Defense Project – IoT World Today

    Finland Set to Lead EU Quantum Technology Defense Project – IoT World Today

    AI for lawyers: Win back your time using technology – nationaljurist.com

    Reclaim Your Time: How AI is Transforming the Legal Profession

    Prosecutors accuse men of exporting U.S. military technology to China – Milwaukee Journal Sentinel

    Men Charged with Illegally Exporting U.S. Military Technology to China

    ROLAND’S NEW WIRELESS TRIGGER TECHNOLOGY, PORTER & DAVIES ON TOUR, NEW 64 AUDIO ASPIRE UNIVERSAL IEM MODELS, WAVES FREE PLUGIN PACK – Modern Drummer Magazine

    ROLAND’S NEW WIRELESS TRIGGER TECHNOLOGY, PORTER & DAVIES ON TOUR, NEW 64 AUDIO ASPIRE UNIVERSAL IEM MODELS, WAVES FREE PLUGIN PACK – Modern Drummer Magazine

    This giant microwave may change the future of war – MIT Technology Review

    Revolutionizing Warfare: The Impact of a Game-Changing Giant Microwave

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

‘Dark force’ theory could solve 2 open cosmic mysteries

December 8, 2023
in Science
‘Dark force’ theory could solve 2 open cosmic mysteries
Share on FacebookShare on Twitter

An illustration of a bright galaxy surrounded by a blueish halo. The background of space takes up a large portion of the image.

An illustration of the dark matter halo that surrounds the Milky Way.
(Image credit: ESO/L Calçada)

A new theory that suggests dark matter is made up of particles that strongly interact with each other via a so-called “dark force.” If true, this may finally explain the extreme densities we see in dark matter haloes surrounding galaxies.

The existence of particles called self-interacting dark matter (SIDM) acts as an alternative to cold dark matter theories which suggest the elusive stuff is made up of massive, slow-moving (and thus cold), weakly interacting particles that don’t collide. The problem with those cold dark matter models is that they struggle to explain two puzzles surrounding what are known as dark matter haloes. 

“The first is a high-density dark matter halo in a massive elliptical galaxy. The halo was detected through observations of strong gravitational lensing, and its density is so high that it is extremely unlikely in the prevailing cold dark matter theory,” Hai-Bo Yu, team leader and a professor of physics and astronomy at the University of California, Riverside, said in a statement. 

“The second,” he continued, “is that dark matter halos of ultra-diffuse galaxies have extremely low densities, and they are difficult to explain by the cold dark matter theory.”

Related: Dark matter may be hiding in the Large Hadron Collider’s particle jets

The haloes

Dark matter presents a major conundrum for scientists because, despite making up around 85% of the matter in the cosmos, it does not interact with light and therefore remains virtually invisible to us. This tells researchers that dark matter can’t just be unseen conglomerations of matter made up of electrons, protons and neutrons  —  so-called baryonic matter that comprises stars, planets, our bodies and pretty much everything we see around us on a day-to-day basis. No, dark matter has to be made of something else.

The only way that researchers can infer the existence of dark matter at all, in fact, is because it has mass and thus interacts with gravity. This effect can be “felt” by baryonic matter we can indeed see and by light, which astronomers are definitely able to observe. 

More specifically, when light travels past these dark matter-wrapped galaxies from background sources, the substance’s influence on the fabric of space diverts the light’s path and, in turn, makes the background sources appear “shifted” to new locations in space. 

This effect, dubbed gravitational lensing, is what originally allowed scientists to determine that most, if not all, galaxies are surrounded by haloes of dark matter in the first place. And these haloes are believed to extend far beyond the limits of those galaxies’ visible matter objects like stars, gas and dust. Gravitational lensing has also allowed astronomers to measure the density of dark matter haloes. Denser haloes are responsible for stronger lensing than less dense haloes around ultra-diffuse galaxies  —  low-brightness galaxies with scattered gas and stars. However, researchers have struggled to explain the extremes of dark matter halo densities.

Enter, artificial intelligence

To tackle this puzzle, Yu and colleagues, including the University of Southern California postdoctoral researchers Ethan Nadler and Daneng Yang, constructed high-resolution simulations of cosmic structures that are based on actual astronomical observations.

They factored into these simulations strong dark matter self-interactions on mass scales relating to strong lensing haloes and ultra-diffuse galaxies. 

“These self-interactions lead to heat transfer in the halo, which diversifies the halo density in the central regions of galaxies,” Nadler explained. “In other words, some halos have higher central densities, and others have lower central densities, compared to their cold dark matter counterparts, with details depending on the cosmic evolution history and environment of individual halos.”

The team concluded that SIDM interacting through a “dark force,” just as baryonic particles interact through the force of electromagnetism and via the strong and weak nuclear forces, could offer a solution that cold dark matter theories don’t deliver.

“Cold dark matter is challenged to explain these puzzles. SIDM is arguably the compelling candidate to reconcile the two opposite extremes,” Yang added. “Now there is an intriguing possibility that dark matter may be more complex and vibrant than we expected.”

The team thinks their research also provides an example of the analytical power of uniting real observations of the universe, which grow in detail with each new generation of telescope, with the burgeoning power of artificial intelligence. 

“We hope our work encourages more studies in this promising research area,” Yu said. “It will be a particularly timely development given the expected influx of data in the near future from astronomical observatories, including the James Webb Space Telescope and upcoming Rubin Observatory.”

The team’s research was published in November in The Astrophysical Journal Letters. 

Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: [email protected].

Breaking space news, the latest updates on rocket launches, skywatching events and more!

Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.’s Open University. Follow him on Twitter @sciencef1rst.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Space.com – https://www.space.com/ai-models-dark-force-dark-matter-universe-theory

Tags: ForcescienceTheory
Previous Post

Wild new NASA plasma tech reduces drag during hypersonic flight

Next Post

That’s no moon! Scientists doubt proposed detection of the 1st exomoons

Collective dynamical regimes predict invasion success and impacts in microbial communities – Nature

Collective dynamical regimes predict invasion success and impacts in microbial communities – Nature

June 4, 2025
John Brenkus, ‘Sport Science’ Host, Died By Suicide, Medical Examiner Says – TMZ

Tragic Loss: ‘Sport Science’ Host John Brenkus Passes Away in Heartbreaking Circumstances

June 4, 2025
Meghan to take a break from As ever as she announces next step for those ‘wondering and waiting’ – Nine – Honey

Meghan to take a break from As ever as she announces next step for those ‘wondering and waiting’ – Nine – Honey

June 4, 2025
Aeternum Update 1.3.27 – newworld.com

Exciting New Features and Enhancements in Aeternum Update 1.3.27!

June 4, 2025
Larry Kudlow: Liberal media has been ‘completely wrong’ on the Trump economy – Fox Business

Larry Kudlow: Liberal media has been ‘completely wrong’ on the Trump economy – Fox Business

June 4, 2025
Author Richard Russo Will Speak At Sandwich Town Hall – CapeNews.net

Join Us for an Inspiring Evening with Author Richard Russo at Sandwich Town Hall!

June 4, 2025
Hochul, Jeffries raise concerns over possible impacts of One Big Beautiful Bill Act – Spectrum News

Hochul, Jeffries raise concerns over possible impacts of One Big Beautiful Bill Act – Spectrum News

June 4, 2025
Inside the tedious effort to tally AI’s energy appetite – MIT Technology Review

Inside the tedious effort to tally AI’s energy appetite – MIT Technology Review

June 4, 2025
Kehoe calls special session on storm damage, KC sports teams – FOX 2

Kehoe Announces Special Session to Address Storm Damage and Support KC Sports Teams

June 3, 2025
From Eggs To Fingerlings, Wyoming Students Dive Into The World Of Fish Conservation – KGAB

From Eggs to Fingerlings: Wyoming Students Make Waves in Fish Conservation!

June 3, 2025

Categories

Archives

June 2025
MTWTFSS
 1
2345678
9101112131415
16171819202122
23242526272829
30 
« May    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (664)
  • Economy (678)
  • Entertainment (21,584)
  • General (15,261)
  • Health (9,720)
  • Lifestyle (681)
  • News (22,149)
  • People (679)
  • Politics (687)
  • Science (15,898)
  • Sports (21,182)
  • Technology (15,664)
  • World (665)

Recent News

Collective dynamical regimes predict invasion success and impacts in microbial communities – Nature

Collective dynamical regimes predict invasion success and impacts in microbial communities – Nature

June 4, 2025
John Brenkus, ‘Sport Science’ Host, Died By Suicide, Medical Examiner Says – TMZ

Tragic Loss: ‘Sport Science’ Host John Brenkus Passes Away in Heartbreaking Circumstances

June 4, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version