Impact events: when were they first seen as potentially catastrophic?

In summary, the understanding of major Earth impact events as potentially catastrophic was first raised in the early to mid-20th century, with notable events such as the impact theory of Meteor Crater in 1903 and the Tunguska event in 1908. However, it wasn't until the 1950s and 1960s with the study of nuclear cratering and the publication of books like Bombarded Earth and Giant Meteorites that the idea gained more traction. In the mid-1960s, there were even discussions around designing a system to intercept potential impactors. However, there were also some pseudoscientific theories, like Worlds in Collision by Velikovsky, which were debunked by scientists.
  • #1
Rendering
2
3
TL;DR Summary
When did someone first realize that Earth impact events could be potential catastrophes?
(This is a history of science question, so please let me know if it's not appropriate to this forum.)

When did someone first realize that major Earth impact events (asteroids, etc.) could potentially be catastrophic?

To be clear, I don't mean in the purely theoretical sense (the likely given that a whopping big object hitting the Earth at a high speed would cause big problems, at least locally) but rather in the practical sense, the understanding that there was a real possibility that such a catastrophe could happen in the future or had happened in the past. (For context, I know a bit about the history of the debates over catastrophism in the sciences, just not when this particular issue was first raised as a practical possibility.)
 
Earth sciences news on Phys.org
  • #2
Disregarding use of the term 'first' in the thread title, contemporary physicist Luis Walter Alvarez correctly identified certain residues in Earth soils as indicators of impact events correlated with past widespread extinctions.
 
Last edited:
  • Like
  • Informative
Likes Astronuc, Rendering, BillTre and 1 other person
  • #3
I would guess somewhere between 1903 (when the impact theory of Meteor Crater was proposed) and the 1964 book Bombarded Earth by Gallant. Some people discount this book because it has good and bad stuff. I would bet on the 1950’s with the study of nuclear cratering. If I have some time, I’ll look into it further.

Edits which have been later edited:
1) There is also Worlds in Collision by Velikovsky (1950). I have never looked at it, but my understanding is that it is pseudoscience.
2) Tunguska happened in 1908. The first serious studies started in the 1920's
3) In 1916 Opik showed that a high speed meteorite would produce an “explosive” crater.
4) In 1932, Karl Reinmuth discovers 1862 Apollo, a 1.5 km Earth crossing asteroid.
5) Baldwin (1948) writes The Face of the Moon making the argument for impact origin of lunar craters.
6) The 1966 book Giant Meteorites by Krinov lists 12 authentic craters and 11 suspected craters on Earth plus Tunguska and the 1947 Sikhote-Aline meteor shower from which 23 tons of material have been recovered. https://en.wikipedia.org/wiki/Sikhote-Alin_meteorite
7) Ideas were floating around by the mid 1960's as evidenced by the 1967 MIT Project Icarus design project to design an interceptor to prevent the impact of an asteroid https://www.wired.com/2012/03/mit-saves-the-world-project-icarus-1967/
8) Mass Extinction Debates edited by Glen quotes
a) De Maupertuis (1742) "comets have occasionally struck the Earth, causing extinction by altering the atmosphere and oceans"
b) Laplace (1797) "a meteorite of great size striking the Earth would produce a cataclysm that would wipe out entire species and destroy .. all the monuments of human history"
9) Mass Extinction Debates edited by Glen lists the following refs which might be of interest.
a) McLaren (1970) "Time, Life and Boundaries" J.Paleontology
b) Urey (1973) "Cometary Collisions and Geological Periods" Nature
c) De Laubenfels (1956) "Dinosaur Extinction: One More Hypothesis" J.Paleontology
d) Opik (1958) "On the catastrophic effects of collisions with celestial bodies" Irish Astronomical J.
e) Oro (1963) "Studies in experimental organic cosmochemistry" NY Acad. Sci. Annals
 
Last edited:
  • Like
Likes Ophiolite, Astronuc, Oldman too and 2 others
  • #4
Thank you both for the replies so far! I'm familiar with the Chicxulub event and the work around it, but every bit of context helps, and a lot of the earlier 20th century stuff is a good place for me to start.
 
  • #5
caz said:
1) There is also Worlds in Collision by Velikovsky (1950). I have never looked at it, but my understanding is that it is pseodoscience.
It's nowhere near THAT reliable. It's junk.
 
  • Like
  • Haha
  • Informative
Likes jim mcnamara, BillTre and berkeman
  • #6
phinds said:
It's nowhere near THAT reliable. It's junk.
What possessed you to read it? I’m a book person with an entire shelf on planetary cratering, but after reading the descriptions I never bothered to find a copy.
 
  • #7
caz said:
What possessed you to read it? I’m a book person with an entire shelf on planetary cratering but after reading the descriptions I never bothered to find a copy.
We read it in college in the 60's as an example of the very worst of the plethora of pseudo science books that came out during that period. The prof used it as the basis for discussions of research and critical thinking. Pretty much everything in it is clearly deliberate misrepresentations, outright lies, gross exaggerations and so forth.

All reputable bookstores, with anything like a knowledgeable staff, keep it in the sci-fic section.
 
Last edited:
  • Like
Likes davenn, Oldman too and Frabjous
  • #8
phinds said:
It's nowhere near THAT reliable. It's junk.
I read Worlds in Collision by Velikovsky as an adult fairy tale. Spotting the errors, incomplete analysis and false conclusions was good for teaching critical thinking and analysis.
 
  • Like
Likes anorlunda
  • #9
Baluncore said:
I read Worlds in Collision by Velikovsky as an adult fairy tale. Spotting the errors, incomplete analysis and false conclusions was good for teaching critical thinking and analysis.
Velikovsky and Albert Einstein were good friends.
 
  • #10
Hornbein said:
Velikovsky and Albert Einstein were good friends.
Yeah, and Henry Kissenger invested heavily in Bernie Madoff's Ponzie Scheme. Bright people can be conned.
 
  • Like
Likes davenn, Oldman too and BillTre
  • #11
Baluncore said:
I read Worlds in Collision by Velikovsky as an adult fairy tale. Spotting the errors, incomplete analysis and false conclusions was good for teaching critical thinking and analysis.
Velikovsky and Albert Einstein were good friends.
phinds said:
Yeah, and Henry Kissenger invested heavily in Bernie Madoff's Ponzie Scheme. Bright people can be conned.
I doubt Albert was conned. More likely he enjoyed V's company.
 
  • #12
Hornbein said:
I doubt Albert was conned. More likely he enjoyed V's company.
Yes. Good con men are usually quite charming.
 
  • Like
Likes davenn
  • #13
caz said:
I would guess somewhere between 1903 (when the impact theory of Meteor Crater was proposed) and the 1964 book Bombarded Earth by Gallant. Some people discount this book because it has good and bad stuff. I would bet on the 1950’s with the study of nuclear cratering. If I have some time, I’ll look into it further.

Edits which have been later edited:
1) There is also Worlds in Collision by Velikovsky (1950). I have never looked at it, but my understanding is that it is pseudoscience.
2) Tunguska happened in 1908. The first serious studies started in the 1920's
3) In 1916 Opik showed that a high speed meteorite would produce an “explosive” crater.
4) In 1932, Karl Reinmuth discovers 1862 Apollo, a 1.5 km Earth crossing asteroid.
5) The 1966 book Giant Meteorites by Krinov lists 12 authentic craters and 11 suspected craters on Earth plus Tunguska and the 1947 Sikhote-Aline meteor shower from which 23 tons of material have been recovered. https://en.wikipedia.org/wiki/Sikhote-Alin_meteorite
6) Ideas were floating around by the mid 1960's as evidenced by the 1967 MIT Project Icarus design project to design an interceptor to prevent the impact of an asteroid https://www.wired.com/2012/03/mit-saves-the-world-project-icarus-1967/
7) Mass Extinction Debates edited by Glen quotes
a) De Maupertuis (1742) "comets have occasionally struck the Earth, causing extinction by altering the atmosphere and oceans"
b) Laplace (1797) "a meteorite of great size striking the Earth would produce a cataclysm that would wipe out entire species and destroy .. all the monuments of human history"
8) Mass Extinction Debates edited by Glen lists the following refs which might be of interest.
a) McLaren (1970) "Time, Life and Boundaries" J.Paleontology
b) Urey (1973) "Cometary Collisions and Geological Periods" Nature
c) De Laubenfels (1956) "Dinosaur Extinction: One More Hypothesis" J.Paleontology
d) Opik (1958) "On the catastrophic effects of collisions with celestial bodies" Irish Astronomical J.
e) Oro (1963) "Studies in experimental organic cosmochemistry" NY Acad. Sci. Annals
That's quite a comprehensive list. Allow me to add a more recent evaluation.

Nice story about what evidence scientists research with respect to meteor or meteroite impacts on the Earth's surface.
https://www.atlasobscura.com/articles/sodom-asteroid
Original - https://theconversation.com/a-giant...-inspiring-the-biblical-story-of-sodom-167678
As the inhabitants of an ancient Middle Eastern city now called Tall el-Hammam went about their daily business one day about 3,600 years ago, they had no idea an unseen icy space rock was speeding toward them at about 38,000 mph (61,000 kph). Flashing through the atmosphere, the rock exploded in a massive fireball about 2.5 miles (4 kilometers) above the ground. The blast was around 1,000 times more powerful than the Hiroshima atomic bomb. The shocked city dwellers who stared at it were blinded instantly. Air temperatures rapidly rose above 3,600 degrees Fahrenheit (2,000 degrees Celsius). Clothing and wood immediately burst into flames. Swords, spears, mudbricks, and pottery began to melt. Almost immediately, the entire city was on fire.

Some seconds later, a massive shockwave smashed into the city. Moving at about 740 mph (1,200 kph), it was more powerful than the worst tornado ever recorded. The deadly winds ripped through the city, demolishing every building. They sheared off the top 40 feet (12 m) of the four-story palace and blew the jumbled debris into the next valley. None of the 8,000 people or any animals within the city survived—their bodies were torn apart and their bones blasted into small fragments. About a minute later, 14 miles (22 km) to the west of Tall el-Hammam, winds from the blast hit the biblical city of Jericho. Jericho’s walls came tumbling down and the city burned to the ground.

A group of archaeologists, geologists, geochemists, geomorphologists, mineralogists, paleobotanists, sedimentologists, cosmic-impact experts, and medical doctors have published their investigation.

https://www.nature.com/articles/s41598-021-97778-3
 
  • Informative
  • Like
Likes davenn, Oldman too and berkeman
  • #14
Astronuc said:
Please be aware that the evidence presented in this Nature article is questionable. Skeptical Inquirer recently published an analysis by Mark Boslough entitled "Sodom Meteor Strike Claims Should Be Taken with a Pillar of Salt" with the tagline:

"A controversial, widely publicized paper claiming that a cosmic impact destroyed a biblical city has had key images photoshopped and rotated to fit the biblical hypothesis."

https://skepticalinquirer.org/2021/...claims-should-be-taken-with-a-pillar-of-salt/
 
  • Wow
  • Like
Likes Oldman too, Astronuc and anorlunda
  • #15
renormalize said:
Please be aware that the evidence presented in this Nature article is questionable.
It does read much like Velikovsky by commitee.
 
  • #16
renormalize said:
Please be aware that the evidence presented in this Nature article is questionable. Skeptical Inquirer recently published an analysis by Mark Boslough entitled "Sodom Meteor Strike Claims Should Be Taken with a Pillar of Salt" with the tagline:
Thanks for the warning.

One allegation:
The team’s established scientists are so wedded to the theory they have opted to ignore the fact their colleague “Allen West” isn’t exactly who he says he is. West is Allen Whitt—who, in 2002, was fined by California and convicted for masquerading as a state-licensed geologist when he charged small-town officials fat fees for water studies. (Dalton 2011)
 
  • #18
I'm interested in the methods and methodology for determining 'evidence' or the 'signature' of certain physical phenomena, and what the means with respect to temperatures and pressures that would indicate a meteor or comet event in the atmosphere or impact on Earth's surface. Certainly, a large impact crater is strong evidence, or deposits of metal elements not found in a broader geological area, e.g., the Sudbury Basin (Canada), which apparently "formed as a result of an impact into the Nuna supercontinent from a bolide approximately 10–15 km (6.2–9.3 mi) in diameter that occurred 1.849 billion years ago."

Ref: https://en.wikipedia.org/wiki/Sudbury_Basin#Formation

With respect to methods and signatures/evidence: 'Fingerprinting' minerals to better understand how they are affected by meteorite collisions
https://phys.org/news/2022-02-fingerprinting-minerals-affected-meteorite-collisions.html
When a space rock survives the turbulent passage through Earth's atmosphere and strikes the surface, it generates shockwaves that can compress and transform minerals in the planet's crust. Since these changes depend on the pressure produced upon impact, experts can use features in Earth's minerals to learn about the meteorite's life story, from the moment of collision all the way back to the conditions from which the celestial bodies originate.
 
  • #19
Asteroids more than 460 feet across make up about a third of the near-Earth asteroids scientists have spotted to date; all told, scientists have spotted 28,266 near-Earth asteroids as of Monday (Feb. 14), according to NASA's Center for Near-Earth Object Studies based at the Jet Propulsion Laboratory in California. Many of those rocks are so small that if they collided with Earth, they would harmlessly burn up in Earth's atmosphere.

Scientists are actually most worried about the threat of asteroids between 460 feet and 3,300 feet (1,000 m) across. Although larger space rocks could catastrophic damage, planetary defense experts are confident they have identified nearly every such asteroid that comes into Earth's neighborhood, which NASA defines as approaching within 120 million miles (195 million kilometers) of the sun.
https://www.space.com/planetary-defense-10000th-medium-near-earth-asteroid

To date, scientists believe they have discovered about 40% of near-Earth asteroids larger than 460 feet but smaller than 3,300 feet. Congress has asked NASA to work toward detecting 90% of these space rocks.

Two key projects will help the agency tackle that goal. One is the Vera C. Rubin Observatory in Chile, which is due to begin observations in the summer of 2023. The other is a NASA space telescope called the Near-Earth Object Surveyor, which will detect asteroids in infrared light to help scientists spot darker rocks. NASA hopes to launch the mission in 2026.
 
  • #21
Astronuc said:
I'm interested in the methods and methodology for determining 'evidence' or the 'signature' of certain physical phenomena, and what the means with respect to temperatures and pressures that would indicate a meteor or comet event in the atmosphere or impact on Earth's surface.
This seems to be a very good beginning, Chicxulub impact consequences abstract.

https://www.nature.com/articles/s43017-022-00283-y
 
  • Like
Likes BillTre

1. When were impact events first recognized as potentially catastrophic?

The concept of impact events as potentially catastrophic was first recognized in the 1980s, with the discovery of the Chicxulub crater in Mexico and its connection to the mass extinction event that wiped out the dinosaurs.

2. How do scientists determine the severity of an impact event?

Scientists use a combination of factors, such as the size and velocity of the impactor, the angle of impact, and the composition of the target material, to determine the severity of an impact event. They also study the resulting crater and any evidence of global environmental changes to assess the impact's effects.

3. How often do impact events occur?

Large impact events, such as the one that caused the extinction of the dinosaurs, are rare and occur on a scale of millions of years. However, smaller impact events, such as meteorite impacts, occur more frequently, with an estimated 500 impacts per year on Earth.

4. Can impact events be predicted?

While scientists can identify potential impactors and track their trajectories, predicting the exact time and location of an impact event is currently not possible. However, ongoing research and technological advancements may lead to improved prediction capabilities in the future.

5. How do impact events affect life on Earth?

Impact events can have a significant impact on life on Earth, causing mass extinctions, global environmental changes, and altering the course of evolution. However, they can also have positive effects, such as creating new habitats and providing necessary nutrients for life to thrive.

Similar threads

  • Aerospace Engineering
Replies
2
Views
2K
  • Earth Sciences
Replies
6
Views
3K
  • Earth Sciences
Replies
5
Views
2K
  • Astronomy and Astrophysics
Replies
4
Views
2K
  • Science Fiction and Fantasy Media
Replies
10
Views
151
  • Other Physics Topics
Replies
13
Views
2K
Replies
7
Views
3K
  • STEM Academic Advising
Replies
11
Views
660
  • Astronomy and Astrophysics
Replies
8
Views
2K
  • Sci-Fi Writing and World Building
Replies
21
Views
1K
Back
Top