The bizarre clouds were discovered by researchers from the Nasa-supported programme, Automated Radiation Measurements for Aerospace Safety (ARMAS), based in Los Angeles.

A vast cloud of nuclear radiation that spreadover continental Europe in 2017 has been traced to an unacknowledged nuclear accident in southern Russia, according to an international team of scientists.

Aircraft have measured radiation surges Danger zones in the air where radiation levels surge could pose an unrecognised health hazard. Airliners may have to avoid these in future, just as they do ...

Nuclear Era Didn't Start with Hiroshima—But With a Secret Radiation Cloud Over America | Opinion Published Jul 16, 2020 at 1:34 PM EDT Updated Jul 16, 2020 at 3:17 PM EDT By Greg Mitchell Author ...

Clouds have a complex relationship with radiation. This is seen with their influence on Earth’s radiation budget, the balance between incoming shortwave radiation from the Sun and outgoing longwave ...

The experts say the cloud of radiation detected over Europe in late September 2017 could only have been caused by a nuclear fuel-reprocessing accident at the Mayak Production Association, a ...