* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Sunday, July 27, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Top 5 entertainment news: Sandeep Reddy Vanga regrets trimming Animal’s runtime by 7-8 minutes, Akshay Ku – Times of India

    Top 5 Entertainment Highlights: Sandeep Reddy Vanga Reveals Why He Trimmed Animal’s Runtime by 7-8 Minutes, Plus Akshay Ku Updates

    Cote de Pablo reveals how Michael Weatherly used his soap opera roots to put her at ease in “NCIS” love scene – yahoo.com

    Cote de Pablo Reveals How Michael Weatherly’s Soap Opera Background Made Their “NCIS” Love Scene Easier

    City of Pelham announces entertainment district plans for former Oak Mountain Amphitheatre site – WVTM

    Pelham Unveils Exciting New Entertainment District Plans for Former Oak Mountain Amphitheatre Site

    Black Box Players presents ‘The Three Musketeers’ – CBS 19 News

    Experience the Adventure: Black Box Players Bring ‘The Three Musketeers’ to Life!

    AP Entertainment SummaryBrief at 1:51 p.m. EDT – Channel 3000

    Entertainment Highlights: Key Updates You Can’t Miss

    ‘Devil Wears Prada 2’ casts Anne Hathaway’s love interest replacing Adrian Grenier’s Nate – Entertainment Weekly

    Devil Wears Prada 2′ Casts New Love Interest for Anne Hathaway, Replacing Adrian Grenier’s Nate

  • 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

    Eagle Unveils Revolutionary X-Ray Technology at Pack Expo

    Validea’s Top Information Technology Stocks Based On Peter Lynch – 7/25/2025 – Nasdaq

    Validea’s Top Information Technology Stocks Based On Peter Lynch – 7/25/2025 – Nasdaq

    WhoFi: New surveillance technology can track people by how they disrupt Wi-Fi signals – Tech Xplore

    WhoFi: New surveillance technology can track people by how they disrupt Wi-Fi signals – Tech Xplore

    Google Cloud Announced as a Key Technology Partner for Odoo Connect 2025 in San Francisco – GlobeNewswire

    Google Cloud Announced as a Key Technology Partner for Odoo Connect 2025 in San Francisco – GlobeNewswire

    Behind the Screens: The Impact of Technology on Real Estate – TRREB

    Behind the Screens: How Technology is Transforming the Future of Real Estate

    Sustainserv and Palau Announce Technology Partnership to Leverage Innovative AI Platform to Advance Sustainability Reporting – Business Wire

    Sustainserv and Palau Team Up to Transform Sustainability Reporting with Breakthrough AI Technology

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Top 5 entertainment news: Sandeep Reddy Vanga regrets trimming Animal’s runtime by 7-8 minutes, Akshay Ku – Times of India

    Top 5 Entertainment Highlights: Sandeep Reddy Vanga Reveals Why He Trimmed Animal’s Runtime by 7-8 Minutes, Plus Akshay Ku Updates

    Cote de Pablo reveals how Michael Weatherly used his soap opera roots to put her at ease in “NCIS” love scene – yahoo.com

    Cote de Pablo Reveals How Michael Weatherly’s Soap Opera Background Made Their “NCIS” Love Scene Easier

    City of Pelham announces entertainment district plans for former Oak Mountain Amphitheatre site – WVTM

    Pelham Unveils Exciting New Entertainment District Plans for Former Oak Mountain Amphitheatre Site

    Black Box Players presents ‘The Three Musketeers’ – CBS 19 News

    Experience the Adventure: Black Box Players Bring ‘The Three Musketeers’ to Life!

    AP Entertainment SummaryBrief at 1:51 p.m. EDT – Channel 3000

    Entertainment Highlights: Key Updates You Can’t Miss

    ‘Devil Wears Prada 2’ casts Anne Hathaway’s love interest replacing Adrian Grenier’s Nate – Entertainment Weekly

    Devil Wears Prada 2′ Casts New Love Interest for Anne Hathaway, Replacing Adrian Grenier’s Nate

  • 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

    Eagle Unveils Revolutionary X-Ray Technology at Pack Expo

    Validea’s Top Information Technology Stocks Based On Peter Lynch – 7/25/2025 – Nasdaq

    Validea’s Top Information Technology Stocks Based On Peter Lynch – 7/25/2025 – Nasdaq

    WhoFi: New surveillance technology can track people by how they disrupt Wi-Fi signals – Tech Xplore

    WhoFi: New surveillance technology can track people by how they disrupt Wi-Fi signals – Tech Xplore

    Google Cloud Announced as a Key Technology Partner for Odoo Connect 2025 in San Francisco – GlobeNewswire

    Google Cloud Announced as a Key Technology Partner for Odoo Connect 2025 in San Francisco – GlobeNewswire

    Behind the Screens: The Impact of Technology on Real Estate – TRREB

    Behind the Screens: How Technology is Transforming the Future of Real Estate

    Sustainserv and Palau Announce Technology Partnership to Leverage Innovative AI Platform to Advance Sustainability Reporting – Business Wire

    Sustainserv and Palau Team Up to Transform Sustainability Reporting with Breakthrough AI Technology

    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 stars’: Dark matter may form exploding stars, and observing the damage could help reveal what it’s made of

March 24, 2024
in Science
‘Dark stars’: Dark matter may form exploding stars, and observing the damage could help reveal what it’s made of
Share on FacebookShare on Twitter

Dark matter is a ghostly substance that astronomers have failed to detect for decades, yet which we know has an enormous influence on normal matter in the universe, such as stars and galaxies. Through the massive gravitational pull it exerts on galaxies, it spins them up, gives them an extra push along their orbits, or even rips them apart.

Like a cosmic carnival mirror, it also bends the light from distant objects to create distorted or multiple images, a process which is called gravitational lensing.

And recent research suggests it may create even more drama than this, by producing stars that explode.

For all the havoc it plays with galaxies, not much is known about whether dark matter can interact with itself, other than through gravity. If it experiences other forces, they must be very weak, otherwise they would have been measured.

A possible candidate for a dark matter particle, made up of a hypothetical class of weakly interacting massive particles (or WIMPs), has been studied intensely, so far with no observational evidence.

Recently, other types of particles, also weakly interacting but extremely light, have become the focus of attention. These particles, called axions, were first proposed in late 1970s to solve a quantum problem, but they may also fit the bill for dark matter.

Unlike WIMPs, which cannot “stick” together to form small objects, axions can do so. Because they are so light, a huge number of axions would have to account for all the dark matter, which means they would have to be crammed together. But because they are a type of subatomic particle known as a boson, they don’t mind.

In fact, calculations show axions could be packed so closely that they start behaving strangely—collectively acting like a wave—according to the rules of quantum mechanics, the theory which governs the microworld of atoms and particles. This state is called a Bose-Einstein condensate, and it may, unexpectedly, allow axions to form “stars” of their own.

This would happen when the wave moves on its own, forming what physicists call a “soliton”, which is a localized lump of energy that can move without being distorted or dispersed. This is often seen on Earth in vortexes and whirlpools, or the bubble rings that dolphins enjoy underwater.

The new study provides calculations which show that such solitons would end up growing in size, becoming a star, similar in size to, or larger than, a normal star. But finally, they become unstable and explode.

The energy released from one such explosion (dubbed a “bosenova”) would rival that of a supernova (an exploding normal star). Given that dark matter far outweighs the visible matter in the universe, this would surely leave a sign in our observations of the sky. We have yet to find such scars, but the new study gives us something to look for.

'Dark stars': dark matter may form exploding stars—and observing the damage could help reveal what it's made of

Artist’s impression of the SKA telescope. Credit: Wikipedia, CC BY-SA

An observational test

The researchers behind the study say that the surrounding gas, made of normal matter, would absorb this extra energy from the explosion and emit some of it back. Since most of this gas is made of hydrogen, we know this light should be in radio frequencies.

Excitingly, future observations with the Square Kilometer Array radio telescope may be able to pick it up.

So, while the fireworks from dark star explosions may be hidden from our view, we might be able to find their aftermath in the visible matter. What’s great about this is that such a discovery would help us work out what dark matter is actually made of—in this case, most likely axions.

What if observations will not detect the predicted signal? That probably won’t rule out this theory completely, as other “axion-like” particles are still possible. A failure of detection may indicate, however, that the masses of these particles are very different, or that they do not couple with radiation as strongly as we thought.

In fact, this has happened before. Originally, it was thought that axions would couple so strongly that they would be able to cool the gas inside stars. But since models of star cooling showed stars were just fine without this mechanism, the axion coupling strength had to be lower than originally assumed.

Of course, there is no guarantee that dark matter is made of axions. WIMPs are still contenders in this race, and there are others too.

Incidentally, some studies suggest that WIMP-like dark matter may also form “dark stars”. In this case, the stars would still be normal (made of hydrogen and helium), with dark matter just powering them.

These WIMP-powered dark stars are predicted to be supermassive and to live only for a short time in the early universe. But they could be observed by the James Webb space telescope. A recent study has claimed three such discoveries, although the jury is still out on whether that’s really the case.

Nevertheless, the excitement about axions is growing, and there are many plans to detect them. For example, axions are expected to convert into photons when they pass through a magnetic field, so observations of photons with a certain energy are targeting stars with magnetic fields, such as neutron stars, or even the sun.

On the theoretical front, there are efforts to refine the predictions for what the universe would look like with different types of dark matter. For example, axions may be distinguished from WIMPs by the way they bend the light through gravitational lensing.

With better observations and theory, we are hoping that the mystery of dark matter will soon be unlocked.

This article is republished from The Conversation under a Creative Commons license. Read the original article.The Conversation

Citation:
‘Dark stars’: Dark matter may form exploding stars, and observing the damage could help reveal what it’s made of (2024, March 23)
retrieved 24 March 2024
from https://phys.org/news/2024-03-dark-stars-reveal.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Phys.org – https://phys.org/news/2024-03-dark-stars-reveal.html

Tags: Mattersciencestars
Previous Post

Neighbourhood residents still processing Friday police-involved shooting

Next Post

Planet cannibalism is common, says cosmic ‘twin study’

Dollar falls against yen as markets weigh new trade deal, Japanese politics – Reuters

Dollar falls against yen as markets weigh new trade deal, Japanese politics – Reuters

July 27, 2025
Clinch County Schools prepare for students’ return with new policies, technology – WALB

Clinch County Schools Prepare for Students’ Return with Exciting New Policies and Cutting-Edge Technology

July 27, 2025
Highlights: Xfinity Series at Indy on The CW – NBC Sports

Unforgettable Thrills Ignite the Xfinity Series at Indy

July 27, 2025
Yellowstone aspen showing signs of recovery following 1995 reintroduction of wolves to park – Oregon State University

Yellowstone Aspen Thriving Again Years After Wolves Were Reintroduced

July 26, 2025
CMC trustees approve new biological science bachelor’s degree – KUNC

CMC Trustees Approve Exciting New Bachelor’s Degree in Biological Sciences

July 26, 2025
By cutting science, the Defense Department is eating its seed corn – Defense News

Cutting Science Funding: How the Defense Department Is Jeopardizing Tomorrow’s Innovation

July 26, 2025
Opinion | Lifestyle Interventions Should Not be Replaced by GLP-1s – MedPage Today

Why Lifestyle Changes Must Stay the Cornerstone-Not GLP-1s

July 26, 2025
World’s most premature baby celebrates first birthday – The Guardian

World’s most premature baby celebrates first birthday – The Guardian

July 26, 2025
Idaho’s first geological engineering degree to power workforce, economy – Bonner County Daily Bee

Idaho Launches Its First Geological Engineering Degree to Boost Workforce and Drive Economic Growth

July 26, 2025
Top 5 entertainment news: Sandeep Reddy Vanga regrets trimming Animal’s runtime by 7-8 minutes, Akshay Ku – Times of India

Top 5 Entertainment Highlights: Sandeep Reddy Vanga Reveals Why He Trimmed Animal’s Runtime by 7-8 Minutes, Plus Akshay Ku Updates

July 26, 2025

Categories

Archives

July 2025
MTWTFSS
 123456
78910111213
14151617181920
21222324252627
28293031 
« Jun    
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 (740)
  • Economy (764)
  • Entertainment (21,645)
  • General (16,126)
  • Health (9,803)
  • Lifestyle (772)
  • News (22,149)
  • People (766)
  • Politics (774)
  • Science (15,979)
  • Sports (21,262)
  • Technology (15,746)
  • World (747)

Recent News

Dollar falls against yen as markets weigh new trade deal, Japanese politics – Reuters

Dollar falls against yen as markets weigh new trade deal, Japanese politics – Reuters

July 27, 2025
Clinch County Schools prepare for students’ return with new policies, technology – WALB

Clinch County Schools Prepare for Students’ Return with Exciting New Policies and Cutting-Edge Technology

July 27, 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