[srmanuel]

I bet one second after the asteroid smashed into earth, climate change instantly became a real issue

[Larry Lucido]

“But impact craters slowly erode over time, which makes them shrink.”

I didn’t realize that George Costanza was a geologist.

[wannabegeek]

The question is, did the dinosaurs really exist?

Stupid question, huh?

When was the supposedly asteroid that hit the earth surface?

Shouldn't asteroid upon getting in to the earth's atmosphere will burn up in to dust?

The earth's moon don't have atmosphere, if you look at the lunar surface there're lots of craters. Is there similar crater of fallen asteroid in the earth's surface like those in the lunar surface?

[Empire_of_Liberty]

“The Rock that Killed the Dinosaurs”, “The Big Bang”, “Climate Change” - science is sure fun since it became fiction!

At least when Percival Lowell was seeing things, it was his own money he was wasting.

[DennisR]

“may have been”

Must be a writer looking for something compelling about which to write. Major fail.

[roving]

Sure it did...

[Pikachu_Dad]

So they adjusted the size of one crater based on erosion but not the other ? Hmm.

[logi_cal869]

Better pics:

http://www.hartrao.ac.za/other/vredefort/vredefort.html

Hard to grasp the scale of this impact crater. I’ve never seen the ‘fir tree patterns’ in rock before (from shockwave).

[minnesota_bound]