[FPSPACE] Fear and loathing on the lauch pad

[Jens Kieffer-Olsen]

-----Original Message-----
From: E.P. Grondine [mailto:epgrondine at hotmail.com] 
Sent: Tuesday, April 28, 2009 8:11 PM

 [snip]

> Also, in the last century, it was thought that asteroids
> and COMETS rarely impacted the Earth; we now know that
> COMETARY impact in particular can have devastating
> consequences. For one example, 90 to 95% of the people
> living in North America died due to COMETARY impact at
> 10,900 BCE.
> Also, we know it COMETS have been the cause of the ELEs,
> even though this is not widely known yet.
> There have been millions of more deaths and several
> nations destroyed by impact in the recent past, though
> again this is not well known yet.

 You are not saying that one of the most researched ELEs -
 the Chicxulub impact - was caused by a comet, are you?

 For one thing the low angle of 20 or so degrees point in 
 the direction of the impactor being an asteroid.

 Comets would likely strike at higher angles, eg. SL9
 dabbing Jupiter at about 45°.

--
Jens Kieffer-Olsen
Slagelse, Denmark