Research led by the University of Kent’s School of Physical Sciences has found new evidence of a low-altitude meteoritic touchdown event reaching the Antarctic ice sheet 430,000 years ago.
A research team of international space scientists, led by Dr. Matthias van Ginneken from the School of Physical Sciences‘ Centre for Astronomy and Planetary Science, has found 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 vaporized 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.
Read more at: https://scitechdaily.com/extra-terrestrial-particles-discovered-in-antarctica-reveal-ancient-meteoritic-impact-430000-years-ago/