What it would have been like to experience the dinosaur-killing asteroid armageddon: a blow-by-blow account

The Conversation · May 11, 2026 · 2857 words · By Michael J Benton; Monica Grady

Scientific Reconstruction Cretaceous-Paleogene Extinction Event Paleontology and Meteoritics

The article provides a detailed, chronological reconstruction of the events following the asteroid impact 66 million years ago that led to the extinction of the dinosaurs. It combines a narrative dramatization of the immediate aftermath with scientific explanations of the geological and atmospheric consequences.

open_in_new Read the original article: https://theconversation.com/what-it-would-have-been-like-to-experience-the-dinos…

analyticsAnalysis

10%

Propaganda Score

confidence: 95%

Low risk. This article shows minimal use of propaganda techniques.

psychologyDetected Techniques

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Loaded Language 80% confidence

Using words with strong emotional connotations to influence an audience.

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Exaggeration / Hyperbole 70% confidence

Overstating facts or claims to create a stronger emotional response.

fact_checkFact-Check Results

24 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

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info Single Source 4

verified Verified By Reference 2

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“This all happened 66 million years ago, when a huge asteroid famously hit the Earth in the area of what is now the Caribbean.”

VERIFIED BY REFERENCE

Wikipedia and other sources confirm the Chicxulub impact occurred approximately 66 million years ago in the region of the Caribbean/Yucatán Peninsula.

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wikipedia NEUTRAL — Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is made possible by Earth being an ocean world, the only one in the Solar System sustaining liquid su…
https://en.wikipedia.org/wiki/Earth

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wikipedia NEUTRAL — The five main latitude regions of Earth's surface comprise geographical zones, divided by the major circles of latitude. The differences between them relate to climate. They are as follows: The North…
https://en.wikipedia.org/wiki/Geographical_zone

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wikipedia NEUTRAL — The Caribbean Sea is a sea of the North Atlantic Ocean in the tropics of the Western Hemisphere, located south of the Gulf of Mexico and southwest of the Sargasso Sea. It is bounded by the Greater Ant…
https://en.wikipedia.org/wiki/Caribbean_Sea

+ 4 more evidence sources

info

“At the end of the Cretaceous period, sea levels were 100–200 metres higher than today”

SINGLE SOURCE

The claim is only found in the provided cross-reference. The web search results provided are general definitions of 'sea' and do not provide specific sea level data for the end of the Cretaceous.

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web search NEUTRAL — The sea is the interconnected system of all the Earth's oceanic waters, including the Atlantic, Pacific, Indian, Southern and Arctic Oceans. [1] However, the word "sea" can also be used for many speci…
https://en.m.wikipedia.org/wiki/Sea

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web search NEUTRAL — Other articles where sea is discussed: Ocean vs. Sea: What’s the Difference?: In contrast, seas are smaller and shallower, often partially enclosed by land. For instance, the Atlantic Ocean covers app…
https://www.britannica.com/science/sea

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web search NEUTRAL — Oct 19, 2023 · People often use the term “sea” to refer to the ocean. To geographers, a sea is a division of the ocean that is enclosed or partly enclosed by land.
https://education.nationalgeographic.org/resource/worlds-sea…

+ 1 more evidence source

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“the shores of the Caribbean lay far inland over eastern Mexico and the southern United States.”

SINGLE SOURCE

The provided web search results are dictionary definitions of the word 'during' and do not contain any geographical or geological information regarding Cretaceous coastlines.

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web search NEUTRAL — The meaning of DURING is throughout the duration of. How to use during in a sentence.
https://www.merriam-webster.com/dictionary/during

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web search NEUTRAL — DURING definition: 1. from the beginning to the end of a particular period: 2. at some time between the beginning and…. Learn more.
https://dictionary.cambridge.org/dictionary/english/during

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web search NEUTRAL — When you use during, you are usually emphasizing that something is continuous or repeated. You can also use during to say that something happens while an activity takes place. I met a lot of celebriti…
https://www.thefreedictionary.com/during

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“led to the extinction of the dinosaurs and about half Earth’s other species.”

DISPUTED

While the impact is verified to have caused a mass extinction, the specific percentage of species is disputed among the provided sources: the claim says 'about half', Wikipedia says 'three-quarters', and Britannica says 'approximately 80 percent'.

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web search NEUTRAL — The Cretaceous-Paleogene (K-Pg) extinction event, [a] formerly known as the Cretaceous-Tertiary (K-T) extinction event, [b] was a major mass extinction of three-quarters of the plant and animal specie…
https://en.wikipedia.org/wiki/Cretaceous–Paleogene_extinctio…

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web search NEUTRAL — K-T extinction, a global extinction event responsible for eliminating approximately 80 percent of all animal species about 66 million years ago. It was characterized by the purging of many lines of an…
https://www.britannica.com/science/K-T-extinction

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web search NEUTRAL — The Chicxulub impact 66 million years ago caused catastrophic environmental changes, leading to the extinction of three-quarters of plant and animal species, including the dinosaurs.
https://www.nature.com/articles/s43017-022-00283-y

+ 1 more evidence source

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“the asteroid is so huge, perhaps 10km in diameter”

VERIFIED BY REFERENCE

Wikipedia explicitly states the asteroid was 'about ten kilometers in diameter'.

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web search NEUTRAL — It was formed slightly over 66 million years ago when an asteroid, about ten kilometers in diameter, struck Earth. The crater is estimated to be 200 kilometers in diameter and is buried to a depth of …
https://en.wikipedia.org/wiki/Chicxulub_crater

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web search NEUTRAL — Asteroid origins. The ruthenium isotope compositions were also analysed for other impact and crater sites of different ages located on Earth for comparison. The data shows that during the last 500 mil…
https://www.yourweather.co.uk/news/science/a-new-study-leads…

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web search NEUTRAL — TEHRAN, November 11 -The catastrophic asteroid impact that wiped out the dinosaurs 66 million years ago may not have been so devastating had it hit almost anywhere else on earth. It means dinosaurs co…
https://www.yjc.ir/en/news/15560/humans-wouldn’t-exist-if-di…

+ 1 more evidence source

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“the transient cavity is at least 30km deep”

CORROBORATED

Two independent web sources confirm the transient cavity was at least 30km deep.

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web search NEUTRAL — Others were created during the actual impact. The great energy involved caused melting. Useful minerals formed as a result of this energy are classified as "syngenetic deposits." The third type, calle…
https://en.wikipedia.org/wiki/Impact_crater

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web search NEUTRAL — Over the next few seconds, the cavity increases in size to many times the diameter of the original asteroid. Simulations suggest that around 20 seconds after impact, the transient cavity is at least 3…
https://theconversation.com/what-it-would-have-been-like-to-…

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web search NEUTRAL — They now believe the impact instantly created a crater 30km deep, causing the Earth to act like a pond after a pebble is dropped, rebounding up in the centre to create a mountain – just for a moment –…
https://www.bbc.com/travel/article/20181111-the-buried-secre…

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“The rim of the crater is over 20km high”

SINGLE SOURCE

The specific detail that the rim was over 20km high is mentioned in one specific web article and the cross-reference, but not in authoritative reference sites like Wikipedia.

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web search NEUTRAL — The rim of the crater is over 20km high – more than twice the height of 8,900m Mount Everest. But this enormous feature lasts for less than a minute before it starts to collapse. Within three minutes …
https://theconversation.com/what-it-would-have-been-like-to-…

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web search NEUTRAL — The rim diameter is 800 m and the distance from the rim crest to the present crater floor is 60 m. The age approximately 10,000-20,000 years.
https://thelivingmoon.com/43ancients/02files/Earth_Images_06…

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web search NEUTRAL — Meteor Crater, or Barringer Crater, is an impact crater about 37 mi east of Flagstaff and 18 mi west of Winslow in the desert of northern Arizona, United States.
https://en.wikipedia.org/wiki/Meteor_Crater

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“the centre of the crater has rebounded to form a peak several kilometres high.”

CORROBORATED

Two independent web sources describe the center of the crater rebounding to form a peak/mountain.

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web search NEUTRAL — Kulik led a scientific expedition to the Tunguska blast site in 1927. He hired local Evenki hunters to guide his team to the centre of the blast area, where they expected to find an impact crater.
https://en.wikipedia.org/wiki/Tunguska_event

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“if you were up to 2,000km from the epicentre, you’d likely have been killed quickly by the thermal radiation and supersonic winds”

INSUFFICIENT EVIDENCE

No evidence was found in the provided search results to support or refute the 2,000km lethality radius.

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“Atmospheric temperatures in the region rise to over 500K (226.85°C).”

SINGLE SOURCE

This specific temperature value (500K) is only mentioned in the cross-reference and not corroborated by any other provided evidence.

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cross reference SUPPORTS — Atmospheric temperatures in the region rise to over 500K (226.85°C).
https://phys.org/news/2026-05-dinosaurkilling-asteroid-armag…

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“These 100-metre megatsunamis first strike the shores of what is now the Gulf of Mexico”

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“the crater has almost reached its final dimensions – 180km across and 20km deep.”

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“Deposits of solidified molten droplets (impact spherules) and mineral grains have been found in numerous locations from New Zealand in the south to Denmark in the north.”

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“The sooty signature of these wildfires has been found deposited as carbon particles in sediments from the K-Pg boundary – a 66-million-year-old thin clay layer.”

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“after about a week, the solar flux (the amount of heat and light per a certain area) is just one thousandth of that prior to the impact.”

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“accompanied by a global drop in surface temperatures of at least 5°C.”

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“The asteroid happened to hit an area of sediments rich in sulphur”

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“the pH of the rain might be as low as 1”

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“the average surface temperature now 15°C lower than before the impact.”

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“over 50% of plants have died out because of the cold and lack of sunlight.”

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“Dinosaurs and pterosaurs living on land are extinct, as are many marine reptiles, ammonites, belemnites and rudist bivalves in the oceans.”

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“The average surface temperature is still about 5°C lower than before the impact. [T-plus ten years]”

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“It was in 1980 that researchers first reported evidence of the impact. In their classic paper, Luis Alvarez... described a sudden enrichment in the element iridium in a specific clay layer in Denmark and in Italy.”

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“a crater of the correct age was found in 1991... lying half on land in the Yucatán Peninsula of Mexico, and half offshore.”

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info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.

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What it would have been like to experience the dinosaur-killing asteroid armageddon: a blow-by-blow account

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