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Airbursts: An underappreciated hazard

Airbursts: An underappreciated hazard
sott.net - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sott.net Daily Mail and Mail on Sunday newspapers.

Krasnoyarskiy Kray , United Kingdom , Chelyabinskaya Oblast , United States , M Van Ginneken , Belgian Geological , Science Advances , Rondane Mountains , Queen Maud Land , Planetary Science Letters , Near Earth Asteroids , Allan Hills , Randall Carlson Newsletter , World War ,

Impact event in Antarctica 430,000 years ago discovered -- Science & Technology -- Sott.net

© Mark A. Garlick
new evidence of a low-altitude meteoritic touchdown event reaching the Antarctic ice sheet 430,000 years ago.
Extra-terrestrial particles (condensation spherules) recovered on the summit of Walnumfjellet (WN) within the Sør Rondane Mountains, Queen Maud Land, East Antarctica, indicate an unusual touchdown event where a jet of melted and vaporised meteoritic material resulting from the atmospheric entry of an asteroid at least 100 m in size reached the surface at high velocity.
This type of explosion caused by a single-asteroid impact is described as intermediate, as it is larger than an airburst, but smaller than an impact cratering event. ....

Chelyabinskaya Oblast , City Of , United Kingdom , Bruxelles Capitale , Marka Garlick , Freie Universit , F Van Maldeghem , Van Ginneken , Matthias Van Ginneken , Russian Academy Of Sciences , Department Of Earth , Belgian Geological , School Of Physical Science Centre For Astronomy , Planetary Science Institute , National High Magnetic Field Laboratory , Royal Belgian Institute Of Natural Sciences , University Of Kent , Imperial College London , Case Western Reserve University , Physical Science Centre , Planetary Science , Rondane Mountains , Queen Maud Land , East Antarctica , Science Advances , Antarctic Meteorites ,

New study discovers ancient meteoritic impact over Antarctica 430,000 years ago

New study discovers ancient meteoritic impact over Antarctica 430,000 years ago
eurekalert.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eurekalert.org Daily Mail and Mail on Sunday newspapers.

Chelyabinskaya Oblast , City Of , United Kingdom , Bruxelles Capitale , Freie Universit , F Van Maldeghem , Van Ginneken , Matthias Van Ginneken , Russian Academy Of Sciences , Department Of Earth , Belgian Geological , Planetary Science Institute , National High Magnetic Field Laboratory , Royal Belgian Institute Of Natural Sciences , University Of Kent , Imperial College London , University Of Kent School Physical Sciences , Case Western Reserve University , Physical Sciences , Rondane Mountains , Queen Maud Land , East Antarctica , Science Advances , Antarctic Meteorites , Belgian Princess Elisabeth Antarctic , Belgian Science Policy ,