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Was the demise of the dinosaurs 65 million years ago somehow linked to our Solar System's journey through the galaxy? The way our Sun and its retinue of planets bounces through the galactic plane may occasionally send comets hurtling to Earth, say researchers.
Astrobiologist William Napier and his team ran simulations of the Solar System's two directions of motion, while also factoring in the Sun's random encounters with giant molecular star forming clouds. Napier said that passages through these denser parts of the galaxy are responsible for the Oort cloud disturbances.
Originally posted by VIKINGANT
This got me thinking that not only might we encounter other 'object' but it has been suggested that external cosmc rays have an effects on our global weather. If we are passing other suns and solar systems that would greatly impact the amount of cosmic debris reaching us. We have all argued about the solar cycles and our weather patterns in the GW/GC discussions but this is something that never gets a look in but probably should be considered. Which is something I suggested in this thread a while back with this link
Originally posted by Essan
I suppose the answer to the question is: No
Because the Chicxulub impact (and other possible impacts) were only one contributory factor in the demise of the dinosaurs etc at the end of the Cretaceous - climate change, sea level changes, changes in vegetation and the massive Deccan Traps volcanic eruptions being other contributory factors.
The idea that a meteorite impact alone was responsible has been largely discarded by most geologists now.