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Ancient asteroid strike in Australia “changed face of earth”
Posted By admin On February 15, 2013 @ 6:56 am In World News | Comments Disabled
Feb 15, 2013
A strike from a big asteroid more than 300 million years ago left a huge impact zone buried in Australia and changed the face of the earth, researchers said on Friday.
“The dust and greenhouse gases released from the crater, the seismic shock and the initial fireball would have incinerated large parts of the earth,” said Andrew Glikson, a visiting fellow at the Australian National University.
The asteroid was bigger than 10 km (6 miles) in diameter, while the impact zone itself was larger than 200 km (120 miles) – the third largest impact zone in the world.
“The greenhouse gases would stay in the atmosphere for tens of thousands of years,” Glikson told Reuters.
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URLs in this post:
 Reuters: http://uk.reuters.com/article/2013/02/15/us-science-asteroid-australia-idUKBRE91E0AO20130215
 Huge asteroid headed for close encounter with Earth: http://www.prisonplanet.com/huge-asteroid-headed-for-close-encounter-with-earth.html
 Close Encounter: Earth-Asteroid Near Miss: http://www.prisonplanet.com/close-encounter-earth-asteroid-near-miss.html
 Scientists unveil new detectors in race to save Earth from next asteroid: http://www.prisonplanet.com/scientists-unveil-new-detectors-in-race-to-save-earth-from-next-asteroid.html
 Massive asteroid could hit Earth in 2182, warn scientists: http://www.prisonplanet.com/massive-asteroid-could-hit-earth-in-2182-warn-scientists.html
 ‘Doomsday Asteroid’ Bigger Than Estimated – ESA: http://www.prisonplanet.com/%e2%80%98doomsday-asteroid%e2%80%99-bigger-than-estimated-%e2%80%93-esa.html
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