Excellent Mars Perseverance video

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    Mars Video
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DaveE said:
no astronauts required...
There are no bucks without Buck Rogers.
 
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Thread 'Landslide, tsunami, seiche in Tracy Arm fjord, Alaska - 10 August 2025'

On August 10, 2025, there was a massive landslide on the eastern side of Tracy Arm fjord. Although some sources mention 1000 ft tsunami, that height represents the run-up on the sides of the fjord. Technically it was a seiche. Early View of Tracy Arm Landslide Features Tsunami-causing slide was largest in decade, earthquake center finds https://www.gi.alaska.edu/news/tsunami-causing-slide-was-largest-decade-earthquake-center-finds...
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Thread 'Could an external cosmic body have influenced Earth’s geology?'

Hello, I’m currently writing a series of essays on Pangaea, continental drift, and Earth’s geological cycles. While working on my research, I’ve come across some inconsistencies in the existing theories — for example, why the main pressure seems to have been concentrated in the northern polar regions. So I’m curious: is there any data or evidence suggesting that an external cosmic body (an asteroid, comet, or another massive object) could have influenced Earth’s geology in the distant...
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