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Renewed Challenge to the Dinosaur Killer - 0 views

www.centauri-dreams.org/?p=7526 astronomy asteroids dinosaurs Chicxulub mass extinction
shared by Ernesto Guido on 29 Apr 09 - Cached
  • Ernesto Guido on 29 Apr 09
     
    Gerta Keller (Princeton University) and Thierry Adatte (University of Lausanne) believe the Chicxulub crater in northern Yucatan was formed some 300,000 years before the mass extinction occurred. Moreover, Keller argues in the upcoming Journal of the Geological Society that not a single species went extinct as a result of the impact.
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Dinosaur-killing impact set Earth to broil, not burn - 0 views

www.newscientist.com/...t-earth-to-broil-not-burn.html astronomy asteroids dinosaurs impact
shared by Ernesto Guido on 08 Dec 09 - Cached
  • Ernesto Guido on 08 Dec 09
     
    The asteroid impact that ended the age of dinosaurs 65 million years ago didn't incinerate life on our planet's surface - it just broiled it, a new study suggests. The work resolves nagging questions about a theory that the impact triggered deadly wildfires around the world, but it also raises new questions about just what led to the mass extinction at the end of the Cretaceous period.
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Asteroid killed off the dinosaurs, says international scientific panel - 1 views

www.sciencedaily.com/...100304142242.htm astronomy dinosaurs asteroid
shared by Ernesto Guido on 07 Mar 10 - Cached
  • Ernesto Guido on 07 Mar 10
     
    The Cretaceous-Tertiary mass extinction, which wiped out the dinosaurs and more than half of species on Earth, was caused by an asteroid colliding with Earth and not massive volcanic activity, according to a comprehensive review of all the available evidence." id="metasummary
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