* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Wednesday, October 1, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Penn State-Themed Restaurant and Entertainment Spot Happy Valley Live Set to Open in State College – StateCollege.com

    Penn State-Themed Restaurant and Entertainment Spot Happy Valley Live Set to Open in State College – StateCollege.com

    The Police Made Chart History With This 1979 Hit Nearly 50 Years Ago – Yahoo

    How The Police Changed Music Forever with Their Iconic 1979 Hit Nearly 50 Years Ago

    Good Deed Entertainment Acquires Worldwide Rights To Liza Mandelup’s Documentary ‘Caterpillar’ – Deadline

    Good Deed Entertainment Lands Global Rights to Liza Mandelup’s Captivating Documentary ‘Caterpillar

    Danielle Fishel Explains Why Being on “DWTS” Makes Her Feel ‘Like It’s 1994 Again’ Filming “Boy Meets World” (Exclusive) – Yahoo

    Danielle Fishel Explains Why Being on “DWTS” Makes Her Feel ‘Like It’s 1994 Again’ Filming “Boy Meets World” (Exclusive) – Yahoo

    Jussie Smollett Claims He Was ‘Disrespected’ on the ‘Special Forces’ Season Premiere – Yahoo

    Jussie Smollett Opens Up About Feeling ‘Disrespected’ During the ‘Special Forces’ Season Premiere

    TicketSmarter Fall Entertainment Guide – Eastern Illinois University Athletics

    TicketSmarter Fall Entertainment Guide – Eastern Illinois University Athletics

  • 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
    STELLA Automotive AI Appoints Fred Seidelman as Chief Technology Officer – Yahoo Finance

    STELLA Automotive AI Appoints Fred Seidelman as New Chief Technology Officer

    Saving Energy and Money with Smart Technology – Terms of Service with Clare Duffy – Podcast on CNN Podcasts – CNN

    Saving Energy and Money with Smart Technology – Terms of Service with Clare Duffy – Podcast on CNN Podcasts – CNN

    Four Strategic Signals Technology Leaders Are Tuning In To – SPONSOR CONTENT FROM ARM – Harvard Business Review

    Four Essential Strategic Signals Every Technology Leader Should Watch

    Virginia Tech hosts annual New Music + Technology Festival this week – Cardinal News

    Virginia Tech Kicks Off Exciting Annual New Music and Technology Festival This Week

    Why I gave the world wide web away for free | Tim Berners-Lee – The Guardian

    Why I Decided to Make the World Wide Web Free for Everyone | Tim Berners-Lee

    From shale to steam: Fossil fuel technology boosts clean geothermal energy – Washington Examiner

    From Shale to Steam: How Fossil Fuel Technology is Powering a Clean Geothermal Energy Revolution

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Penn State-Themed Restaurant and Entertainment Spot Happy Valley Live Set to Open in State College – StateCollege.com

    Penn State-Themed Restaurant and Entertainment Spot Happy Valley Live Set to Open in State College – StateCollege.com

    The Police Made Chart History With This 1979 Hit Nearly 50 Years Ago – Yahoo

    How The Police Changed Music Forever with Their Iconic 1979 Hit Nearly 50 Years Ago

    Good Deed Entertainment Acquires Worldwide Rights To Liza Mandelup’s Documentary ‘Caterpillar’ – Deadline

    Good Deed Entertainment Lands Global Rights to Liza Mandelup’s Captivating Documentary ‘Caterpillar

    Danielle Fishel Explains Why Being on “DWTS” Makes Her Feel ‘Like It’s 1994 Again’ Filming “Boy Meets World” (Exclusive) – Yahoo

    Danielle Fishel Explains Why Being on “DWTS” Makes Her Feel ‘Like It’s 1994 Again’ Filming “Boy Meets World” (Exclusive) – Yahoo

    Jussie Smollett Claims He Was ‘Disrespected’ on the ‘Special Forces’ Season Premiere – Yahoo

    Jussie Smollett Opens Up About Feeling ‘Disrespected’ During the ‘Special Forces’ Season Premiere

    TicketSmarter Fall Entertainment Guide – Eastern Illinois University Athletics

    TicketSmarter Fall Entertainment Guide – Eastern Illinois University Athletics

  • 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
    STELLA Automotive AI Appoints Fred Seidelman as Chief Technology Officer – Yahoo Finance

    STELLA Automotive AI Appoints Fred Seidelman as New Chief Technology Officer

    Saving Energy and Money with Smart Technology – Terms of Service with Clare Duffy – Podcast on CNN Podcasts – CNN

    Saving Energy and Money with Smart Technology – Terms of Service with Clare Duffy – Podcast on CNN Podcasts – CNN

    Four Strategic Signals Technology Leaders Are Tuning In To – SPONSOR CONTENT FROM ARM – Harvard Business Review

    Four Essential Strategic Signals Every Technology Leader Should Watch

    Virginia Tech hosts annual New Music + Technology Festival this week – Cardinal News

    Virginia Tech Kicks Off Exciting Annual New Music and Technology Festival This Week

    Why I gave the world wide web away for free | Tim Berners-Lee – The Guardian

    Why I Decided to Make the World Wide Web Free for Everyone | Tim Berners-Lee

    From shale to steam: Fossil fuel technology boosts clean geothermal energy – Washington Examiner

    From Shale to Steam: How Fossil Fuel Technology is Powering a Clean Geothermal Energy Revolution

    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

PFAS in East Selah drinking water – Washington State Department of Ecology (.gov)

Alarming PFAS Contamination Discovered in East Selah Drinking Water

October 1, 2025
Science Expo – Northern Public Radio

Discover the Wonders of Science at the Exciting Expo!

October 1, 2025
Science and artificial intelligence could help personalize brain stimulation for smokers – News-Medical

How Science and AI Are Transforming Personalized Brain Stimulation to Help Smokers Quit

October 1, 2025
Review: What’s good at new prime-cuts steakhouse in Virginia Beach – Yahoo

Review: What’s good at new prime-cuts steakhouse in Virginia Beach – Yahoo

October 1, 2025
STELLA Automotive AI Appoints Fred Seidelman as Chief Technology Officer – Yahoo Finance

STELLA Automotive AI Appoints Fred Seidelman as New Chief Technology Officer

October 1, 2025
Sports Illustrated’s Men’s College Basketball Preseason Top 25 – Sports Illustrated

Sports Illustrated’s Men’s College Basketball Preseason Top 25 – Sports Illustrated

October 1, 2025
Milan Fashion Week Asks the Question: Is It the Best-Dressed City in The World? – The New York Times

Milan Fashion Week Asks the Question: Is It the Best-Dressed City in The World? – The New York Times

October 1, 2025
How a government shutdown would impact the economy – CBS News

How a Government Shutdown Could Impact the Economy

October 1, 2025
Penn State-Themed Restaurant and Entertainment Spot Happy Valley Live Set to Open in State College – StateCollege.com

Penn State-Themed Restaurant and Entertainment Spot Happy Valley Live Set to Open in State College – StateCollege.com

October 1, 2025

Teresa Nicholson Celebrated as Pardee Hospital’s Teammate of the Year

September 30, 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 (845)
  • Economy (865)
  • Entertainment (21,740)
  • General (17,342)
  • Health (9,909)
  • Lifestyle (879)
  • News (22,149)
  • People (868)
  • Politics (876)
  • Science (16,076)
  • Sports (21,366)
  • Technology (15,849)
  • World (848)

Recent News

PFAS in East Selah drinking water – Washington State Department of Ecology (.gov)

Alarming PFAS Contamination Discovered in East Selah Drinking Water

October 1, 2025
Science Expo – Northern Public Radio

Discover the Wonders of Science at the Exciting Expo!

October 1, 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