© Berliner Verlag / Global Look Press
Scientists have found a "highly unusual" particle enriched with uranium in the skies over Alaska's Aleutian Islands. The source of the substance, which is typically used in nuclear fuel and bombs, is still unclear.
The mysterious substance "containing a very small amount of enriched uranium" was found at an altitude of 7km (4.3 miles) above Alaska's Aleutian Islands, according to a
report issued by the
Journal of Environmental Radioactivity.It is the first time the group of US scientists has detected enriched uranium-235 in their 20-year study. They were making no special attempt to sample radioactive material, when they came across it during a routine flight to check atmospheric conditions in August 2016.
"During 20 years of aircraft sampling of millions of particles in the global atmosphere, we have rarely encountered a particle with a similarly high content of 238U [uranium-238] and never a particle with enriched 235U [uranium-235]," an abstract from the article says, with the full study to be published in April.
Comment: See also this report from the state of Maharashtra: Unusual hailstorm kills 2 and damages crops in India