Rock that Ended Reign of the Dinosaurs Was a Comet

by Paul Rincon

The space rock that hit Earth 65 million years ago and is widely implicated in the end of the dinosaurs was likely a speeding comet.

That is the conclusion of research which suggests the 180km-wide Chicxulub crater in Mexico was carved out by a smaller object than previously thought. Many scientists consider a large and relatively slow moving asteroid to have been the likely culprit.

Details were outlined at the 44th Lunar and Planetary Science Conference.

But other researchers were more cautious about the results.

"The overall aim of our project is to better characterise the impactor that produced the crater in the Yucatan peninsula [in Mexico]," Jason Moore, from Dartmouth College in New Hampshire, told BBC News.

The space rock gave rise to a global layer of sediments enriched in the chemical element iridium, in concentrations much higher than naturally occurs; it must have come from outer space…

(read more: BBC News)                               (images: SPL)

  1. infinitecosmos reblogged this from paradoxicalparadigms
  2. bluegreentourmaline reblogged this from dendroica
  3. simchatreeoflife reblogged this from heartoftardis
  4. the-meaning-of-soul reblogged this from xrastacostax
  5. xrastacostax reblogged this from likeaphysicist
  6. scatterthewordsintimeandspace reblogged this from rhino-a-go-go
  7. rhino-a-go-go reblogged this from jamesadomian
  8. snowatsoho reblogged this from rhamphotheca and added:
    Whoosh mothafuckers.
  9. killfaceexw reblogged this from jamesadomian
  10. jamesadomian reblogged this from paradoxicalparadigms and added:
    Now the dinosaurs can finally rest in peace. #closure
  11. madmanxxl reblogged this from rhamphotheca and added:
    Like these artist rendering
  12. madeirafauna-flora reblogged this from rhamphotheca
  13. vangoghfuckyour-self reblogged this from quantum-immortal
  14. quantum-immortal reblogged this from neuronsandneutrons
  15. ultr4viol3tnim reblogged this from rhamphotheca
  16. worldbeyondtrance reblogged this from rhamphotheca
  17. opakakaek reblogged this from rhamphotheca
  18. be-a-stargazer reblogged this from riceagainst
  19. riceagainst reblogged this from starstuffblog
  20. cosmic-microwave-background reblogged this from likeaphysicist
  21. notrebound reblogged this from keep-it-local
  22. keep-it-local reblogged this from rhamphotheca
  23. mommadollarubbahubba reblogged this from thatsoursong