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Mysterious ring in Antarctica may have been caused by a meteorite


Cheryl Santa Maria
Digital Reporter

Monday, January 12, 2015, 7:42 PM - A mysterious 2 metre-wide ring discovered in Antarctica last month continues to stump scientists, with some believing the large area was caused by a meteorite.

The crater was discovered by German scientist Christian Müller as he conducted an aerial survey of Antarctica's King Baudouin Ice Shelf on December 20, 2014.

"I looked out of the window, and I saw an unusual structure on the surface of the ice," Müller said in a video.


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"There was some broken ice looking like icebergs, which is very unusual on a normally flat ice shelf, surrounded by a large, wing-shaped, circular structure."

He told the Daily Mail that he had never seen anything like it before. 

Satellite images suggest the possible impact crater may be at least 25 years old.

Still, some scientists aren't convinced the ring was caused by a crater because it would have taken a massive space rock -- and a huge explosion -- to create such a large crater. 

"A very large explosion would have caused a 2-kilometer-wide crater — much larger than anything detected impacting Earth in recent history," Peter Brown, director for the Centre of Planetary Science and Exploration at the University of Western Ontario told LiveScience.

"So the feature seen is almost certainly not due to any meteorite impact."

Scientists are still processing the data collected during the aerial survey. Once that's completed, researchers hope they'll have a better understanding of the origin of the crater.

Dr. Graeme Eagles of the Alfred Wegener Institute's geophysical survey team told the Daily Mail his team can't say "with any confidence" what caused the crater.

"We can say we've found something unusual," he added.

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