unravel
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Science
Citizen scientist data helps unravel the mystery of low-latitude blue auroras
It was one of two photos of blue-dominated auroras analyzed in this study. Credit: Takuya Usami On May 11, 2024, colorful aurora borealis appeared over the islands of Honshu and Hokkaido in Japan, triggered by an intense geomagnetic storm. Auroras observed at low latitudes usually appear red due to the emission of oxygen atoms. However, on this day, a salmon-pink…
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Earth
Scientists unravel the difficult complexities of radiocarbon in ice cores
Credit: Australian Nuclear Science and Technology Organization (ANSTO) ANSTO scientists Dr. Andrew Smith, Dr. Quan Hua and Dr. Bing Yan investigated how in situ cosmogenic radiocarbon (14C) is produced in the top layer of compacted snow (the ‘burn layer’). I contributed to a paper that sheds light on what is retained and what is lost. “) and the underlying shallow…
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