We always talk about the Chicxulub impact and its consequence, but never what can we see before the impact. Here you can watch how looks like the sky at different moments before the impact : one year before, one month before, one week before, on day before, one hour before and the last 10 minutes in real time.

Thanks Space Engine !

In this animation, I assume the asteroid was a long-term period comet as it was stated in this paper :

https://www.nature.com/articles/s4159...

In fact, the asteroid was probably a carbonaceous chondrite come fom the Belt, but a comet is more impressive ;)

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Greyhound - 1st crossing
Greyhound - Surrounded
Elite Dangerous - Coma Berenices
Elite Dangerous - Draco
Mass Effect - Uplink
Mass Effect 3 - The Fate of the Galaxy
Mass Effect 3 - The Final Decision
Mass Effect Andromeda - Landing on Havarl
Tropical beach night :    • 5K Tropical Beach Night - 8 HOURS of ...  
RPG nightime forest ambience :    • Night Time Forest | Nature Ambience |...  

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For people who ask how Earth could be inside the comet tail before the impact, a picture is better than a long speech :

https://ibb.co/2gZ6pbQ

A tail is not only behind the comet body, but it also surrounds the body in a large corona bigger than Earth