* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Wednesday, October 22, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Sacramento city leaders approve adding 2 entertainment zones in midtown – CBS News

    Sacramento City Leaders Approve Two Thrilling New Entertainment Zones in Midtown

    AMC brings first new Dolby Experience to Gwinnett since 2017 – Wyoming News Now

    AMC Launches First New Dolby Experience in Gwinnett Since 2017

    Hetzel Design: blending architecture and entertainment – Blooloop

    Hetzel Design: Where Architecture and Entertainment Unite in Perfect Harmony

    Country music legend rushed to hospital year after heart surgery. Here’s what we know – PennLive.com

    Country Music Legend Rushed to Hospital One Year After Heart Surgery – What’s Happening Now?

    Strictly Come Dancing results: Chris Robshaw is eliminated while drag queen La Voix escapes dance-off – Yahoo

    Strictly Come Dancing results: Chris Robshaw is eliminated while drag queen La Voix escapes dance-off – Yahoo

    Placer County town of Loomis considers entertainment zone for downtown – CBS News

    Loomis Unveils Thrilling New Entertainment Zone to Revitalize Downtown

  • 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
    Rydberg Technologies Inc. Announces Launch of Rydberg Photonics in Berlin – The Quantum Insider

    Rydberg Technologies Launches Exciting New Photonics Division in Berlin

    A look into new technology at Columbia University that could help prevent a dangerous pregnancy complication – ABC7 New York

    A look into new technology at Columbia University that could help prevent a dangerous pregnancy complication – ABC7 New York

    Office Technology: Dealers’ Managed IT Revenue up Nearly 30% – The Cannata Report –

    Office Technology: Dealers’ Managed IT Revenue up Nearly 30% – The Cannata Report –

    3 E Network Technology Group Limited Closes $1.5 Million Convertible Promissory Note Offering – Quiver Quantitative

    3 E Network Technology Group Limited Closes $1.5 Million Convertible Promissory Note Offering – Quiver Quantitative

    3 Technology Stocks to Buy Now – Yahoo Finance

    3 Must-Buy Tech Stocks You Can’t Afford to Miss Right Now

    ‘New frontier’: Austin leaders start discussions on air taxi technology – KXAN Austin

    Austin Leaders Ignite Exciting Conversations on the Future of Air Taxi Technology

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Sacramento city leaders approve adding 2 entertainment zones in midtown – CBS News

    Sacramento City Leaders Approve Two Thrilling New Entertainment Zones in Midtown

    AMC brings first new Dolby Experience to Gwinnett since 2017 – Wyoming News Now

    AMC Launches First New Dolby Experience in Gwinnett Since 2017

    Hetzel Design: blending architecture and entertainment – Blooloop

    Hetzel Design: Where Architecture and Entertainment Unite in Perfect Harmony

    Country music legend rushed to hospital year after heart surgery. Here’s what we know – PennLive.com

    Country Music Legend Rushed to Hospital One Year After Heart Surgery – What’s Happening Now?

    Strictly Come Dancing results: Chris Robshaw is eliminated while drag queen La Voix escapes dance-off – Yahoo

    Strictly Come Dancing results: Chris Robshaw is eliminated while drag queen La Voix escapes dance-off – Yahoo

    Placer County town of Loomis considers entertainment zone for downtown – CBS News

    Loomis Unveils Thrilling New Entertainment Zone to Revitalize Downtown

  • 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
    Rydberg Technologies Inc. Announces Launch of Rydberg Photonics in Berlin – The Quantum Insider

    Rydberg Technologies Launches Exciting New Photonics Division in Berlin

    A look into new technology at Columbia University that could help prevent a dangerous pregnancy complication – ABC7 New York

    A look into new technology at Columbia University that could help prevent a dangerous pregnancy complication – ABC7 New York

    Office Technology: Dealers’ Managed IT Revenue up Nearly 30% – The Cannata Report –

    Office Technology: Dealers’ Managed IT Revenue up Nearly 30% – The Cannata Report –

    3 E Network Technology Group Limited Closes $1.5 Million Convertible Promissory Note Offering – Quiver Quantitative

    3 E Network Technology Group Limited Closes $1.5 Million Convertible Promissory Note Offering – Quiver Quantitative

    3 Technology Stocks to Buy Now – Yahoo Finance

    3 Must-Buy Tech Stocks You Can’t Afford to Miss Right Now

    ‘New frontier’: Austin leaders start discussions on air taxi technology – KXAN Austin

    Austin Leaders Ignite Exciting Conversations on the Future of Air Taxi 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

Sun-blocking dust from asteroid impact drove the dinosaur extinction

October 30, 2023
in Science
Sun-blocking dust from asteroid impact drove the dinosaur extinction
Share on FacebookShare on Twitter

Earth

The Chicxulub impact 66 million years ago filled the sky with fine silicate dust, which blocked out sunlight and lingered for 15 years

By Chen Ly

Dust may have sustained an ‘impact winter’ for 15 years

eva_mask/Shutterstock

When a huge asteroid hit Earth 66 million years ago, clouds of dust from pulverised rocks blocked out the sun for 15 years. This dust may have been the primary driver of the mass extinction that saw off the non-avian dinosaurs and many other species, according to new research.

The Chicxulub impactor ejected plumes of sulphur-based gases into the atmosphere alongside vast amounts of silicate dust. The impact also triggered wildfires around the planet, which emitted soot and carbon dioxide into the air.

Soon after, the world fell into an “impact winter”, which wiped out 75 per cent of species on the planet.

“The research on this proposes the Chicxulub mass extinction was mainly governed by either sulphuric gas emissions or soot injections from global wildfires,” says Cem Berk Senel at the Royal Observatory of Belgium in Brussels.

However, previous research hasn’t considered whether the silicate dust could have had an effect too, he says.

To investigate further, Senel and his colleagues analysed fine-grained material deposited at a site in North Dakota at the time of the Chicxulub impact. The team found that the diameter of the grains ranged from 0.8 to 80 micrometres, with an average size of 2.88 micrometres.

Putting this information into a climate model, the team found that sulphur gases were the primary driver of global cooling initially, by blocking sunlight. However, these gases only stuck around in the atmosphere for about eight years.

Meanwhile, silicate dust lingered in the air for 15 years after the impact, which suggests that it must have played a large role in sustaining the global winter. The researchers found that the dust alone contributed to a 15°C drop in Earth’s surface temperature, and this effect gradually weakened after the first couple of years.

The dust was also more effective than the sulphur gases at blocking the wavelengths of light used for photosynthesis in plants and phytoplankton.

“Only the silica dust resulted in long-lasting photosynthetic shutdown after impact,” says Senel. This led to a lack of food for many species, setting off a series of extinctions on land and in the oceans.

Senel and his colleagues now hope to study the climatic effects of the asteroid impact on a much longer timescale. “There’s still so many big questions to uncover about what happened to life after one of the biggest mass extinction events,” he says.

Topics:

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : New Scientist – https://www.newscientist.com/article/2400245-sun-blocking-dust-from-asteroid-impact-drove-the-dinosaur-extinction/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home

Tags: AsteroidscienceSun-blocking
Previous Post

We can now only stay under 1.5°C target if we achieve net zero by 2034

Next Post

UK AI summit: Government testing chatbot for tax and benefits

Forest cover enhances pest control by birds and bats independently of vineyard management intensity – besjournals

Forest cover enhances pest control by birds and bats independently of vineyard management intensity – besjournals

October 22, 2025
November Family Consumer Science Program – Alachua County

November Family Consumer Science Program – Alachua County

October 22, 2025
Correction: Anti-Science Movement story – The News-Gazette

Unraveling the Truth Behind the Anti-Science Movement: A Closer Look

October 22, 2025
Best Burgers 2025: 9 cult-favorite burgers off the beaten path – Yahoo

Best Burgers 2025: 9 cult-favorite burgers off the beaten path – Yahoo

October 22, 2025
Rydberg Technologies Inc. Announces Launch of Rydberg Photonics in Berlin – The Quantum Insider

Rydberg Technologies Launches Exciting New Photonics Division in Berlin

October 22, 2025
Forbes Unveils First-Ever “Most Powerful Women In Sports” List, Featuring 25 Of The Trailblazers Transforming The Industry, Including Gayle Benson, Caitlin Clark, Michele Kang, Serena Williams And More – Forbes

Meet the 25 Trailblazing Women Revolutionizing the World of Sports, Featuring Gayle Benson, Caitlin Clark, Michele Kang, Serena Williams and More

October 22, 2025
Grandmaster Daniel Naroditsky remembered for his impact on the chess world – NPR

Grandmaster Daniel Naroditsky: Honoring a Timeless Chess Legacy

October 22, 2025
Seattle’s Creative Economy: Building Talent, Culture, and Community – GeekWire

Seattle’s Creative Economy: How Talent, Culture, and Community Are Shaping the Future

October 22, 2025
Sacramento city leaders approve adding 2 entertainment zones in midtown – CBS News

Sacramento City Leaders Approve Two Thrilling New Entertainment Zones in Midtown

October 22, 2025
Self-efficacy mediates the effect of hope on health promotion intention in Chinese stroke patients – Nature

How Hope Boosts Health Motivation in Chinese Stroke Patients Through Self-Efficacy

October 22, 2025

Categories

Archives

October 2025
M T W T F S S
 12345
6789101112
13141516171819
20212223242526
2728293031  
« Sep    
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 (881)
  • Economy (902)
  • Entertainment (21,773)
  • General (17,746)
  • Health (9,943)
  • Lifestyle (915)
  • News (22,149)
  • People (903)
  • Politics (912)
  • Science (16,113)
  • Sports (21,402)
  • Technology (15,882)
  • World (885)

Recent News

Forest cover enhances pest control by birds and bats independently of vineyard management intensity – besjournals

Forest cover enhances pest control by birds and bats independently of vineyard management intensity – besjournals

October 22, 2025
November Family Consumer Science Program – Alachua County

November Family Consumer Science Program – Alachua County

October 22, 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