Questions tagged [chicxulub]

Questions regarding the celestrial body which most likely killed the dinosaurs.

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10
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1answer
2k views

How many iridium layers do we know, besides the K-Pg one (the dinosaur killer "smoking gun")?

The hypothesis of a large asteroid impact playing a role in dinosaurs extinction was strengthened by the discovery of a global iridium anomaly in the geologic record, at the Cretaceous–Paleogene (K-Pg)...
3
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0answers
125 views

Other side of Earth when the Dinosaur-killer struck

When the (Chicxulub) asteroid hit Yucatan, what was it like in the minutes, days and weeks afterward on distant locations on Earth? Related How loud was the asteroid that killed the dinosaurs?
13
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1answer
2k views

How loud was the asteroid that killed the dinosaurs?

Asteroid impacts on the Earth can be very loud when they break up in the atmosphere, like Chelyabinsk, captured in this video: The Chelyabinsk asteroid break-up was ...
28
votes
5answers
7k views

How early could we detect an asteroid the size of the one that caused the extinction of the dinosaurs?

Would we know months, years ahead? How sophisticated is our technology's ability to detect it at 100% accuracy?
78
votes
2answers
15k views

Could the dinosaurs have seen the asteroid that killed them?

Wikipedia says the Chicxulub impactor is thought to have been a 10-15 km diameter object. Would it have been visible to a (human*) naked eye before impact? And if so, would it have appeared like a ...
7
votes
2answers
316 views

Time of day of the K-Pg asteroid impact?

Is it possible to determine what daytime the Chicxulub impactor striked the Earth 66 mya? Was it day or night, what was the current phase of the Moon etc.? Can sediments, rhytmites or something else ...