by AVAO » Mon Sep 16, 2024 3:09 pm
Lasse H wrote: ↑Mon Sep 16, 2024 9:38 am
Two different hits in approximately the same place?
Hmmm
https://solarsystem.nasa.gov/gltf_embed/2369/
Compare with the moon:
Source:https://news.mit.edu/2016/retracing-ori ... -moon-1027
"According to the model, 3.8 billion years ago, a chunk of rock about 64 kilometers in size hit the moon at 54,000 kilometers per hour. The original crater that was created was up to 180 kilometers deep. This crater was not stable, the walls collapsed and warm rock flowed in from the side. This influx caused the crust above to collapse and the cliffs of the outer two rings, several kilometers high, were formed, the rear ring of which has a diameter of 930 kilometers.
According to the model, the third, inner ring was formed in a different way: When a cosmic impact occurs, the backlash often creates a central hill in the crater. In the case of the Orientale crater, this hill was too big and high to remain stable. It collapsed under its own gravity and thus formed the inner ring of the crater. "It was a really violent process," explains Johnson in a statement from his university. "These several kilometer-high cliffs and the inner ring all formed within minutes of the impact."
source: https://www.n-tv.de/wissen/Raetsel-um-M ... 90071.html[quote="Lasse H" post_id=341257 time=1726479492 user_id=123973]
Two different hits in approximately the same place?
[/quote]
Hmmm
[img2]https://live.staticflickr.com/65535/53999883294_1ea7eb7b1f_b.jpg[/img2]
[size=75][url]https://solarsystem.nasa.gov/gltf_embed/2369/[/url][/size]
Compare with the moon:
[img2]https://news.mit.edu/sites/default/files/styles/news_article__image_gallery/public/images/201610/MIT-Moon-Mapping-1_0.jpg?itok=Z9iD287C[/img2]
[size=75]Source:[url]https://news.mit.edu/2016/retracing-origins-massive-multi-ring-crater-moon-1027[/url][/size]
"According to the model, 3.8 billion years ago, a chunk of rock about 64 kilometers in size hit the moon at 54,000 kilometers per hour. The original crater that was created was up to 180 kilometers deep. This crater was not stable, the walls collapsed and warm rock flowed in from the side. This influx caused the crust above to collapse and the cliffs of the outer two rings, several kilometers high, were formed, the rear ring of which has a diameter of 930 kilometers.
According to the model, the third, inner ring was formed in a different way: When a cosmic impact occurs, the backlash often creates a central hill in the crater. In the case of the Orientale crater, this hill was too big and high to remain stable. It collapsed under its own gravity and thus formed the inner ring of the crater. "It was a really violent process," explains Johnson in a statement from his university. "These several kilometer-high cliffs and the inner ring all formed within minutes of the impact."
[size=65]source: https://www.n-tv.de/wissen/Raetsel-um-Mondkrater-mit-drei-Ringen-geloest-article18990071.html[/size]