Sassari Sphere, Sardinia, 27 August 1952

The officially released sources DOW-UAP-D157 document a later-recorded account by Professor G. B. Sias of a luminous near-spherical appearance visible for seconds, together with his and an astronomer’s interpretations. The file contains no instrument data, independently documented additional witnesses, or official causal finding. Sias’s interpretations are not Air Force findings.