The planet is fine.
The life living on the thin crust of the planet, which life can only survive in a very narrow temperature and climate band? Almost all dead.
Not hard to believe, at all.
In fact, from this Christian’s perspective, an asteroid impact is predicted in Revelations called “wormwood” which is a “star” that falls from the sky and causes basically all the same crap the scientist have talked about kiling the dinos.
Such an impact would ring the planet like a bell.
Any fault line with enough tension built up would be shaken loose into an earthquake, "mountain and island were moved out of their places".
Earthquakes and shocks would disturb aquifers, cracking rock and exposing the waters to fresh supplies of salts and soluble minerals, "making a third of the waters bitter", perhaps?
Once the eject starts reentering the earth's atmosphere what would that look like? Like "the stars of heaven fell unto the earth"!
What survived Chixulub? The very creatures the lived or nested underground, that "hid themselves in the dens and in the rocks of the mountains".
What would the mushroom cloud/ejecta blanket look like as it swept high over an observer? Like a scroll rolling over the heavens, maybe?
See my description at post #29. Does my description of the volcano of steam sound even a little bit like:
And he opened the bottomless pit; and there arose a smoke out of the pit, as the smoke of a great furnace; and the sun and the air were darkened by reason of the smoke of the pit.Yeah. A disaster of quite literally Biblical proportions.