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Fraser
2017-May-18, 08:20 PM
A new BBC documentary called "The Day The Dinosaurs Died" explains how things might have been different for the dinosaurs if the asteroid that caused their extinction had hit deeper ocean.
The post Dinosaur Killing Asteroid Hit in Exactly the Wrong Place (https://www.universetoday.com/135604/dinosaur-killing-asteroid-hit-exactly-wrong-place/) appeared first on Universe Today (https://www.universetoday.com).


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DaveC426913
2017-May-19, 01:09 AM
THAT asteroid hit in the wrong place.

All the other extinction-level asteroids over the tens of millions of years of the reign of the dinosaurs hit in harmless places.

Imagine hitting a thousand baseballs from your backyard, and 999 of them pass harmlessly into the field.

One of them breaks a window, and one might say "if that baseball had been five feet to the left, I wouldn't be paying for an expensive window right now."
Of course, the neighbor doesn't remember the 999 hits; just the one.

schlaugh
2017-May-19, 01:52 AM
And from I've been able glean without seeing the show, the idea is that 30 seconds difference would have put the asteroid into the Atlantic or Pacific. I don't quite see how.

https://www.google.com/amp/www.popsci.com/amp/dinosaur-asteroid-late

https://www.google.com/amp/amp.usatoday.com/story/101783508/

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DaveC426913
2017-May-19, 02:04 AM
And from I've been able glean without seeing the show, the idea is that 30 seconds difference would have put the asteroid into the Atlantic or Pacific. I don't quite see how.

Ah. Got it.

Because, in 30 seconds the Earth would have moved 900km farther along in its orbit.

schlaugh
2017-May-19, 02:10 AM
Doh! Of course. I was hung up on rotation but wasn't thinking of orbital motion.


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DaveC426913
2017-May-19, 02:14 AM
Doh! Of course. I was hung up on rotation but wasn't thinking of orbital motion.


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Yeah. Me too.

mfumbesi
2017-May-24, 01:26 PM
Well we wouldn't be here if it had missed or hit the ocean.
I suppose something could have later wiped then out, but we wouldn't be here.
Sad about the massive loss of life back then, but happy to be here.....LOL