Primary Country (Mandatory)

United States

Other Country (Optional)

Set News Language for United States

Primary Language (Mandatory)
English
Other Language[s] (Optional)
No other language available

Set News Language for World

Primary Language (Mandatory)
English
Other Language(s) (Optional)

Set News Source for United States

Primary Source (Mandatory)
CNN
Other Source[s] (Optional)

Set News Source for World

Primary Source (Mandatory)
AajTak
Other Source(s) (Optional)
  • Countries
    • India
    • United States
    • Qatar
    • Germany
    • China
    • Canada
    • World
  • Categories
    • National
    • International
    • Business
    • Entertainment
    • Sports
    • Special
    • All Categories
  • Available Languages for United States
    • English
  • All Languages
    • English
    • Hindi
    • Arabic
    • German
    • Chinese
    • French
  • Sources
    • India
      • AajTak
      • NDTV India
      • The Hindu
      • India Today
      • Zee News
      • NDTV
      • BBC
      • The Wire
      • News18
      • News 24
      • The Quint
      • ABP News
      • Zee News
      • News 24
    • United States
      • CNN
      • Fox News
      • Al Jazeera
      • CBSN
      • NY Post
      • Voice of America
      • The New York Times
      • HuffPost
      • ABC News
      • Newsy
    • Qatar
      • Al Jazeera
      • Al Arab
      • The Peninsula
      • Gulf Times
      • Al Sharq
      • Qatar Tribune
      • Al Raya
      • Lusail
    • Germany
      • DW
      • ZDF
      • ProSieben
      • RTL
      • n-tv
      • Die Welt
      • Süddeutsche Zeitung
      • Frankfurter Rundschau
    • China
      • China Daily
      • BBC
      • The New York Times
      • Voice of America
      • Beijing Daily
      • The Epoch Times
      • Ta Kung Pao
      • Xinmin Evening News
    • Canada
      • CBC
      • Radio-Canada
      • CTV
      • TVA Nouvelles
      • Le Journal de Montréal
      • Global News
      • BNN Bloomberg
      • Métro
SAMSUNG Galaxy Tab S6 Lite 10.4 Buy Now
Men's Lightweight Bomber Jacket Buy Now
Ribbed Turtleneck Fitted Long Sleeve Tops Buy Now
Apple Watch Series 4 Buy Now
RUNBOX Slim RFID Leather Wallet Buy Now
Regular Fit Straight Leg Jean Buy Now
Women's Joggers Pants Buy Now
Reebok Princess Sneakers Buy Now
Columbia Steens Mountain 2.0 Full Zip Buy Now
Acer Aspire C27-1700-UA91 AIO Desktop Buy Now
Slim RFID Aluminum Card Wallet Buy Now
COOFANDY Men's Plaid Denim Shirt Buy Now
Men's Ecosmart Fleece Sweatshirt Buy Now
Glasting Melting Lip Balm Buy Now
JMIERR Men's Casual Shorts Buy Now
Womens Strappy Square Neck Tank Top Tummy Control Buy Now
Braun Silk·Expert Pro 5 IPL Buy Now
Phoenix Crystal Necklace Buy Now
Embroidered Satin Shrug & Dhoti Set Buy Now
Smartwatch: Answer/Make Calls, Fitness Tracked Buy Now
SAMSUNG Galaxy Tab S6 Lite 10.4 Buy Now
Men's Lightweight Bomber Jacket Buy Now
Ribbed Turtleneck Fitted Long Sleeve Tops Buy Now
Apple Watch Series 4 Buy Now
RUNBOX Slim RFID Leather Wallet Buy Now
Regular Fit Straight Leg Jean Buy Now
Women's Joggers Pants Buy Now
Reebok Princess Sneakers Buy Now
Columbia Steens Mountain 2.0 Full Zip Buy Now
Acer Aspire C27-1700-UA91 AIO Desktop Buy Now
MoreBack to News Headlines
Asteroid that doomed the dinosaurs originated beyond Jupiter

Asteroid that doomed the dinosaurs originated beyond Jupiter

The Hindu
Friday, August 16, 2024 2:50 AM GMT

The C-type asteroid impact in modern-day Mexico that wiped out the dinosaurs and reshaped the earth's history forever 66 million years ago originated beyond Jupiter, a new study has reported.

It was a turning point in the history of life on the earth. An asteroid an estimated 10-15 km) wide slammed into Mexico’s Yucatan Peninsula 66 million years ago, triggering a global cataclysm that eradicated about three-quarters of the world’s species and ended the age of dinosaurs.

The impact pulverised the asteroid and spread its debris worldwide, still present in a global layer of clay deposited in the aftermath of that fateful day. A new analysis of this debris has resolved a long debate about the nature of the asteroid, showing that it was a type that originated beyond Jupiter in the outer solar system.

The impactor, based on the debris composition, was a carbonaceous asteroid, or C-type, so named because of a high concentration of carbon. The study ruled out that the impactor was a comet or that the debris layer had been laid down by volcanism, as some had hypothesised.

“A projectile originating at the outskirts of the solar system sealed the fate of the dinosaurs,” said geochemist Mario Fischer-Gödde of the University of Cologne in Germany, lead author of the study published on Thursday in the journal Science.

The impact at the end of the Cretaceous Period gouged the Chicxulub (pronounced CHIK-shu-loob) crater, 180 km wide and 20 km deep. The clay layer is rich in metals including iridium, ruthenium, osmium, rhodium, platinum and palladium that are rare on the earth but common in asteroids.

The researchers focused upon ruthenium - specifically, the ratio of its isotopes present in the clay layer. Isotopes are atoms of the same element with slightly different masses because of differing numbers of subatomic particles called neutrons. Ruthenium has seven isotopes, with three especially important in the findings. The ruthenium isotope ratios matched other known carbonaceous asteroids.

“Ruthenium is especially useful in this context as the isotopic signature in the clay layer is almost entirely made up of ruthenium from the impactor and not the background sediment, and ruthenium shows distinct isotopic compositions between inner and outer solar system materials,” said geoscientist and study co-author Steven Goderis of Vrije Universiteit Brussel in Belgium.

Read full story on The Hindu
Share this story on:-
Run 3 Space | Play Space Running GamePlay Run 3, the ultimate space tunnel running game with 300+ challenging levels!Adv.
Traffic Jam 3D | Online Racing GameTraffic Jam 3D is a game where you’ll be driving through heavy traffic.Adv.
Duck Hunt | Play Old Classic GamePlay the classic 1984 light gun shooter game Duck Hunt on your browser.Adv.
More Related News
Imbibe the spirit of ‘P4’ and serve the needy: Collector Lakshmisha

Government initiative 'P4' encourages affluent to support economically disadvantaged families, bridging socio-economic gap through scholarships and mentorship.

Mumbai advocate moves Supreme Court against Raj Thackeray over ‘anti-Hindi’ remarks

PIL seeks criminal action against MNS chief Raj Thackeray for inciting violence and linguistic hatred in Maharashtra.

Tamil Nadu prepares panel to appoint the next Director-General of Police

Tamil Nadu government to send a list of eligible officers to UPSC for appointment of the next DGP

Kindergarten students oriented on safety on board train by Railway Police

Kindergarten students oriented on safety on board train by Railway Police

Andhra Pradesh CM Chandrababu Naidu to visit Tirupati on July 19

Chief Minister N. Chandrababu Naidu's visit to Tirupati focuses on sanitation, temple visit, and public interaction.

30th graduation day held at Mannar Thirumalai Naicker College

Mannar Thirumalai Naicker College's 30th graduation day in Madurai celebrated academic achievements and advised graduates on future success.

Flooded flyovers, choked roads: Traffic police change gears on monsoon strategy

rainfall in hyderabad, traffic stalled

Maharashtra excise department lapses caused revenue loss of several crore rupees: CAG

CAG report exposes Maharashtra State excise department's operational lapses leading to significant revenue shortfalls and losses.

From unniyappam to premium Cafe Kudumbashree, a story of culinary success

Shareefa Kalathingal's journey from selling 10 packets of unniyappam to owning Cafe Kudumbashree is a tale of resilience and success.

CPI MP seeks NIA probe into Dharmasthala ‘crimes’

Rajya Sabha member urges NIA probe into alleged crimes targeting women in Dharmasthala, Karnataka, citing systematic violence and administrative silence.

Blame game between HYDRAA, residents as inundation continues

Blame game between HYDRAA, residents as inundation continues

Auroville researchers aim to ignite global interest in traditional mathematics education at Seoul meet

Auroville research team presents Indian mathematics pedagogy findings at international conference, aiming to revolutionize global math education.

Suspended IFoS officer offers apology; Minister orders his suspension to be revoked

Indian Forest Service (IFoS) officer R. Gokul, who was suspended by the State government in connection with a case filed in the Supreme Court seeking permission to denotify 443 acres of HMT forest land, besides writing a letter to the CBI, has reportedly admitted to his mistake and submitted an unconditional apology.

Parking Slot | Free Parking GamePlay Parking Slot, the best online 3D car driving and parking game.Adv.
Slope Ball Run - Play OnlineSlope Game takes you on an exciting journey of a ball on special paths.Adv.
Integrated bus terminal at Karikkamuri in Kochi runs into rough weather

Construction of ₹12-crore bus terminal in Kochi faces delays due to land swap issues, prompting alternative steel structure proposal.

Delhi High Court asks authorities to decide former NIA judge's plea for arms licence

Delhi High Court to decide on former NIA judge's plea for arms licence, citing personal security concerns.

Tejashwi seeks support from Opposition and ruling parties over SIR in Bihar

Tejashwi Yadav seeks support against disenfranchisement in Bihar, writes to 35 leaders, including Rahul Gandhi and Nitish Kumar.

Chief Minister Stalin, his Cabinet colleagues focused on their own welfare: Palaniswami

AIADMK's Edappadi K. Palaniswami accuses Chief Minister M.K. Stalin of focusing on self-interest and neglecting public welfare.

Southern Railway plans to convert Tiruvannamalai railway station into PFTR terminal

Southern Railway plans to convert Tiruvannamalai station into a PFTR terminal for safety checks and improved passenger amenities.

AIADMK assails Congress, allies for bringing in caste dimension to Cabinet shuffle

AIADMK secretary criticizes Congress for caste-based politics, plans to petition Election Commission on CPI(M) expenditure in Tamil Nadu.

Crowd chase Cantonment MLA in a road rage incident

MLA Sri Ganesh Narayanan's convoy allegedly attacked in road rage incident while heading to Bonalu celebration in Hyderabad.

INTUC asks Centre for invitation to tripartite meetings, blames Air India crash on privatisation

INTUC questions Centre's exclusion from tripartite panels, advocates workers' cooperatives, and criticizes privatization after Air India crash.

‘A useful tool’: annual share of abstentions in India’s U.N. votes at all-time high

India's U.N. voting strategy shifts towards more abstentions, fewer 'yes' votes, reflecting a polarised world and complex resolutions.

Andhra Pradesh set to depute native language speakers for Koya, Muria tribes along Sabari, Godavari rivers

Andhra Pradesh State Tribal Welfare Department appoints Koya language speakers in government primary schools along Sabari and Godavari rivers.

The Tamil Nadu police to roll out mobile application to collect mandatory audio-visual evidence

e-Sakshaya mobile app for police: Collect audio-visual evidence, upload photos, generate secure packets, strengthen evidence chain.

Indo-Israel training programme for farmers in Thally cancelled amid protest from CPI(M) and affiliate body

Indo-Israel farmer training programme in Thally cancelled due to CPI(M) protest over Israel's actions in Gaza.

© 2008 - 2025 Webjosh  |  News Archive  |  Privacy Policy  |  Contact Us