Asteroids: Deadly Impact

45min | 1997
Every year, millions of asteroids and comets or ''stray bullets'' streak through the skies, and tons of small meteorites strike our planet! Some 65 million years ago, dinosaurs were wiped off the face of the earth, in what many believe was the aftermath of a massive cosmic collision. Could something like this happen again? Scientists believe that the impact of an asteroid only a mile wide would be globally catastrophic. Join extraordinary geologist Eugene Shoemaker and his wife Carolyn who have remapped the heavens with their discoveries of more than 30 comets and hundreds of asteroids. Now that we know what's out there, how can we defend ourselves?

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Topics: Space, Planet, Earth, Astronomy, Comet, Geologist, Cosmic, Catastrophe, Future, Nature Attacks
Reviews: A 2 Fans
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Comments

William Saunders
William Saunders
February 18, 2014
cool
Wally Pratt
Wally Pratt
January 29, 2014
B+
wallace gene
wallace gene
December 18, 2013
A-
Nicole Singleton
Nicole Singleton
June 10, 2012
Okay..but where is the ROCK? Is it underground? We can easily detect if the rock is there (underground) so why aren't we talking about it?
Goderick Villadelgado
Goderick Villadelgado
June 10, 2012
Because it's smashed to bits...
Nicole Singleton
Nicole Singleton
June 11, 2012
Not all the way...They would have found the rock somewhere in the middle below the surface. How do we know all of these are made by an asteroid? Some might have been made by volcanic activity, physicist smarty pants :)
Benjamin Johnson
Benjamin Johnson
April 17, 2012
The world united has enough firepower to destroy a threatening alien object. The most destructive force known is the sun. That's what I would would worry about!
Mark Ruble
Mark Ruble
April 10, 2012
BILLY- ha ha ha! where do you get this stuff? God bless the gifted comedians of the world...it might be they who end up saving us all! :)
Daniel Kahalas
Daniel Kahalas
April 8, 2012
It may come suddenly not expected..than what?
Daniel Kahalas
Daniel Kahalas
April 8, 2012
Would anyone survive even 5 miles down? Would it flip the earth to a geological pole shift?
John Holroyd
John Holroyd
April 11, 2012
It depends upon the size of the impactor and the velocity of the little beasty. Large enough or fast enough and it could make the impact unsurvivable at any location on earth. Fortunately as the impact gets larger the chances of one happening goes down so the chances of an earth destroying impact are very small while the chances of a city size destruction event is pretty high. Tunguska would have taken out a major city and that happened only 104 years ago.
Shelita Venchillia
Shelita Venchillia
April 8, 2012
ONLY JAH KNOWS.
Billy Seamon
Billy Seamon
October 29, 2011
I GOT IT! I GOT IT! I GOT IT! OH SH*T!